/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 03:54:43,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 03:54:43,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 03:54:43,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 03:54:43,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 03:54:43,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 03:54:43,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 03:54:43,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 03:54:43,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 03:54:43,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 03:54:43,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 03:54:43,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 03:54:43,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 03:54:43,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 03:54:43,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 03:54:43,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 03:54:43,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 03:54:43,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 03:54:43,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 03:54:43,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 03:54:43,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 03:54:43,128 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 03:54:43,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 03:54:43,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 03:54:43,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 03:54:43,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 03:54:43,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 03:54:43,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 03:54:43,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 03:54:43,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 03:54:43,130 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 03:54:43,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 03:54:43,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 03:54:43,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 03:54:43,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 03:54:43,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 03:54:43,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:54:43,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 03:54:43,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 03:54:43,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 03:54:43,131 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 03:54:43,132 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 03:54:43,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 03:54:43,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 03:54:43,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 03:54:43,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 03:54:43,347 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 03:54:43,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i [2022-02-15 03:54:43,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af27fd3a/b4d78dcf00a148b9a9411d6fb25cf4f9/FLAG350943f73 [2022-02-15 03:54:43,774 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 03:54:43,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/mcmillan2006.i [2022-02-15 03:54:43,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af27fd3a/b4d78dcf00a148b9a9411d6fb25cf4f9/FLAG350943f73 [2022-02-15 03:54:43,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af27fd3a/b4d78dcf00a148b9a9411d6fb25cf4f9 [2022-02-15 03:54:43,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 03:54:43,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 03:54:43,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 03:54:43,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 03:54:43,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 03:54:43,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788a52d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43, skipping insertion in model container [2022-02-15 03:54:43,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 03:54:43,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 03:54:43,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/mcmillan2006.i[1009,1022] [2022-02-15 03:54:43,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:54:43,927 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 03:54:43,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/mcmillan2006.i[1009,1022] [2022-02-15 03:54:43,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:54:43,958 INFO L208 MainTranslator]: Completed translation [2022-02-15 03:54:43,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43 WrapperNode [2022-02-15 03:54:43,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 03:54:43,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 03:54:43,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 03:54:43,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 03:54:43,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:43,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 03:54:43,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 03:54:43,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 03:54:43,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 03:54:43,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (1/1) ... [2022-02-15 03:54:44,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:54:44,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 03:54:44,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 03:54:44,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 03:54:44,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 03:54:44,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 03:54:44,057 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 03:54:44,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-15 03:54:44,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-15 03:54:44,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 03:54:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 03:54:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 03:54:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 03:54:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-15 03:54:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-15 03:54:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 03:54:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 03:54:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 03:54:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 03:54:44,102 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 03:54:44,104 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 03:54:44,188 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 03:54:44,193 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 03:54:44,193 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-15 03:54:44,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:54:44 BoogieIcfgContainer [2022-02-15 03:54:44,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 03:54:44,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 03:54:44,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 03:54:44,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 03:54:44,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 03:54:43" (1/3) ... [2022-02-15 03:54:44,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d53461c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:54:44, skipping insertion in model container [2022-02-15 03:54:44,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:54:43" (2/3) ... [2022-02-15 03:54:44,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d53461c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:54:44, skipping insertion in model container [2022-02-15 03:54:44,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:54:44" (3/3) ... [2022-02-15 03:54:44,200 INFO L111 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2022-02-15 03:54:44,204 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 03:54:44,204 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 03:54:44,233 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 03:54:44,242 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-02-15 03:54:44,243 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 03:54:44,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:54:44,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-15 03:54:44,259 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:44,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:44,260 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:44,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:44,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1868594418, now seen corresponding path program 1 times [2022-02-15 03:54:44,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:44,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807731330] [2022-02-15 03:54:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:44,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:44,329 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:44,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:44,509 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:44,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807731330] [2022-02-15 03:54:44,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [807731330] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:44,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:44,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 03:54:44,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541965514] [2022-02-15 03:54:44,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:44,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 03:54:44,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:44,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 03:54:44,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:54:44,535 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:54:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:44,650 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2022-02-15 03:54:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 03:54:44,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-02-15 03:54:44,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:44,658 INFO L225 Difference]: With dead ends: 48 [2022-02-15 03:54:44,658 INFO L226 Difference]: Without dead ends: 22 [2022-02-15 03:54:44,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-15 03:54:44,663 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:44,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 39 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:44,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-02-15 03:54:44,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2022-02-15 03:54:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 03:54:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-02-15 03:54:44,688 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2022-02-15 03:54:44,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:44,689 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-02-15 03:54:44,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:54:44,689 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-02-15 03:54:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-15 03:54:44,690 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:44,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:44,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 03:54:44,690 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:44,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:44,691 INFO L85 PathProgramCache]: Analyzing trace with hash -426319892, now seen corresponding path program 1 times [2022-02-15 03:54:44,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:44,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310714191] [2022-02-15 03:54:44,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:44,698 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:44,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:44,700 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:44,872 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:44,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310714191] [2022-02-15 03:54:44,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1310714191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:44,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:44,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 03:54:44,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034091083] [2022-02-15 03:54:44,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:44,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 03:54:44,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 03:54:44,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 03:54:44,874 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:54:45,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:45,052 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-02-15 03:54:45,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 03:54:45,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-02-15 03:54:45,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:45,054 INFO L225 Difference]: With dead ends: 32 [2022-02-15 03:54:45,054 INFO L226 Difference]: Without dead ends: 30 [2022-02-15 03:54:45,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-02-15 03:54:45,065 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 33 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:45,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-15 03:54:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2022-02-15 03:54:45,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:54:45,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-02-15 03:54:45,078 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2022-02-15 03:54:45,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:45,079 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-02-15 03:54:45,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:54:45,079 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-02-15 03:54:45,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-02-15 03:54:45,080 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:45,080 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:45,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 03:54:45,080 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:45,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1328899642, now seen corresponding path program 1 times [2022-02-15 03:54:45,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:45,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671627505] [2022-02-15 03:54:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:45,088 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:45,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:45,093 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-15 03:54:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:45,265 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:45,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671627505] [2022-02-15 03:54:45,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [671627505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:45,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:45,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 03:54:45,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682500727] [2022-02-15 03:54:45,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:45,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 03:54:45,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:45,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 03:54:45,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 03:54:45,268 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 03:54:45,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:45,390 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2022-02-15 03:54:45,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 03:54:45,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-02-15 03:54:45,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:45,393 INFO L225 Difference]: With dead ends: 46 [2022-02-15 03:54:45,393 INFO L226 Difference]: Without dead ends: 30 [2022-02-15 03:54:45,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-02-15 03:54:45,394 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 29 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:45,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 37 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:45,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-15 03:54:45,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-02-15 03:54:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 22 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:54:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-02-15 03:54:45,404 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2022-02-15 03:54:45,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:45,404 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-02-15 03:54:45,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 03:54:45,404 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-02-15 03:54:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-02-15 03:54:45,405 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:45,405 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:45,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 03:54:45,405 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:45,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:45,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1936590556, now seen corresponding path program 2 times [2022-02-15 03:54:45,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:45,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468206063] [2022-02-15 03:54:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:45,408 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:45,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:45,409 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-02-15 03:54:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:45,560 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:45,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468206063] [2022-02-15 03:54:45,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [468206063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:45,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:45,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 03:54:45,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366333834] [2022-02-15 03:54:45,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:45,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 03:54:45,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:45,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 03:54:45,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-02-15 03:54:45,562 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 03:54:45,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:45,766 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2022-02-15 03:54:45,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 03:54:45,766 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-02-15 03:54:45,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:45,767 INFO L225 Difference]: With dead ends: 42 [2022-02-15 03:54:45,767 INFO L226 Difference]: Without dead ends: 40 [2022-02-15 03:54:45,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2022-02-15 03:54:45,768 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:45,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 54 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:45,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-02-15 03:54:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2022-02-15 03:54:45,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:54:45,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2022-02-15 03:54:45,775 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 26 [2022-02-15 03:54:45,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:45,775 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2022-02-15 03:54:45,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 03:54:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2022-02-15 03:54:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-02-15 03:54:45,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:45,776 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:45,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 03:54:45,776 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:45,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1234500350, now seen corresponding path program 3 times [2022-02-15 03:54:45,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:45,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623855195] [2022-02-15 03:54:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:45,778 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:45,779 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-02-15 03:54:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-15 03:54:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:45,858 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:45,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623855195] [2022-02-15 03:54:45,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1623855195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:45,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:45,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 03:54:45,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687255623] [2022-02-15 03:54:45,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:45,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 03:54:45,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:45,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 03:54:45,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 03:54:45,860 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:54:45,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:45,991 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2022-02-15 03:54:45,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 03:54:45,991 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2022-02-15 03:54:45,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:45,992 INFO L225 Difference]: With dead ends: 60 [2022-02-15 03:54:45,992 INFO L226 Difference]: Without dead ends: 40 [2022-02-15 03:54:45,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-02-15 03:54:45,993 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:45,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 49 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-02-15 03:54:45,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2022-02-15 03:54:45,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:54:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2022-02-15 03:54:46,000 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 34 [2022-02-15 03:54:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:46,001 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2022-02-15 03:54:46,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:54:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2022-02-15 03:54:46,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-15 03:54:46,002 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:46,002 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:46,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 03:54:46,002 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:46,003 INFO L85 PathProgramCache]: Analyzing trace with hash -487899940, now seen corresponding path program 4 times [2022-02-15 03:54:46,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:46,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582804289] [2022-02-15 03:54:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:46,004 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:46,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:46,005 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-15 03:54:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-15 03:54:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:46,143 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:46,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582804289] [2022-02-15 03:54:46,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1582804289] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:46,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:46,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 03:54:46,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311813891] [2022-02-15 03:54:46,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:46,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 03:54:46,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:46,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 03:54:46,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 03:54:46,145 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:54:46,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:46,424 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2022-02-15 03:54:46,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 03:54:46,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 36 [2022-02-15 03:54:46,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:46,426 INFO L225 Difference]: With dead ends: 52 [2022-02-15 03:54:46,426 INFO L226 Difference]: Without dead ends: 50 [2022-02-15 03:54:46,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2022-02-15 03:54:46,427 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 40 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:46,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 69 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:46,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-02-15 03:54:46,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2022-02-15 03:54:46,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 states have internal predecessors, (37), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:54:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2022-02-15 03:54:46,449 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 36 [2022-02-15 03:54:46,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:46,460 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2022-02-15 03:54:46,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:54:46,461 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2022-02-15 03:54:46,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-15 03:54:46,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:46,463 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:46,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 03:54:46,463 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:46,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:46,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1322580298, now seen corresponding path program 5 times [2022-02-15 03:54:46,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:46,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030200359] [2022-02-15 03:54:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:46,471 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:46,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:46,473 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-15 03:54:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-15 03:54:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-15 03:54:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:46,574 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:46,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030200359] [2022-02-15 03:54:46,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1030200359] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:46,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:46,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 03:54:46,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948828346] [2022-02-15 03:54:46,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:46,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 03:54:46,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:46,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 03:54:46,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-02-15 03:54:46,576 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:54:46,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:46,848 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2022-02-15 03:54:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 03:54:46,848 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2022-02-15 03:54:46,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:46,850 INFO L225 Difference]: With dead ends: 74 [2022-02-15 03:54:46,850 INFO L226 Difference]: Without dead ends: 50 [2022-02-15 03:54:46,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2022-02-15 03:54:46,851 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:46,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 51 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-02-15 03:54:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2022-02-15 03:54:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.054054054054054) internal successors, (39), 38 states have internal predecessors, (39), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:54:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2022-02-15 03:54:46,862 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 44 [2022-02-15 03:54:46,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:46,862 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2022-02-15 03:54:46,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:54:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2022-02-15 03:54:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-02-15 03:54:46,863 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:46,864 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:46,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 03:54:46,864 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:46,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:46,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1186401044, now seen corresponding path program 6 times [2022-02-15 03:54:46,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:46,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121418350] [2022-02-15 03:54:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:46,866 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:46,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:46,867 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-15 03:54:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-15 03:54:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-15 03:54:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:47,044 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:47,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121418350] [2022-02-15 03:54:47,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2121418350] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:47,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:47,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-15 03:54:47,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898544617] [2022-02-15 03:54:47,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:47,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-15 03:54:47,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:47,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-15 03:54:47,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-02-15 03:54:47,046 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand has 16 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:54:47,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:47,439 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2022-02-15 03:54:47,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 03:54:47,439 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2022-02-15 03:54:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:47,440 INFO L225 Difference]: With dead ends: 62 [2022-02-15 03:54:47,440 INFO L226 Difference]: Without dead ends: 60 [2022-02-15 03:54:47,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2022-02-15 03:54:47,442 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 45 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:47,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 80 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:54:47,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-02-15 03:54:47,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2022-02-15 03:54:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 44 states have internal predecessors, (45), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:54:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2022-02-15 03:54:47,451 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 46 [2022-02-15 03:54:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:47,452 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2022-02-15 03:54:47,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:54:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2022-02-15 03:54:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-15 03:54:47,453 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:47,453 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:47,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 03:54:47,453 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:47,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:47,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1707008786, now seen corresponding path program 7 times [2022-02-15 03:54:47,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:47,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005929067] [2022-02-15 03:54:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:47,455 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:47,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:47,456 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-15 03:54:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-15 03:54:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-15 03:54:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-15 03:54:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:47,579 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:47,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005929067] [2022-02-15 03:54:47,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2005929067] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:47,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:47,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 03:54:47,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853438646] [2022-02-15 03:54:47,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:47,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 03:54:47,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:47,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 03:54:47,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-02-15 03:54:47,581 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:54:47,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:47,821 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2022-02-15 03:54:47,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 03:54:47,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 54 [2022-02-15 03:54:47,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:47,822 INFO L225 Difference]: With dead ends: 88 [2022-02-15 03:54:47,822 INFO L226 Difference]: Without dead ends: 60 [2022-02-15 03:54:47,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2022-02-15 03:54:47,823 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 40 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:47,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 53 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:47,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-02-15 03:54:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2022-02-15 03:54:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:54:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2022-02-15 03:54:47,855 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 54 [2022-02-15 03:54:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:47,855 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2022-02-15 03:54:47,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:54:47,855 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2022-02-15 03:54:47,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 03:54:47,857 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:47,857 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:47,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 03:54:47,857 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:47,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:47,858 INFO L85 PathProgramCache]: Analyzing trace with hash -275659828, now seen corresponding path program 8 times [2022-02-15 03:54:47,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:47,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797742915] [2022-02-15 03:54:47,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:47,861 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:47,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:47,864 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-15 03:54:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-15 03:54:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-15 03:54:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-15 03:54:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:48,160 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:48,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797742915] [2022-02-15 03:54:48,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1797742915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:48,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:48,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-15 03:54:48,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143009124] [2022-02-15 03:54:48,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:48,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-15 03:54:48,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:48,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-15 03:54:48,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-15 03:54:48,162 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:54:48,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:48,589 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2022-02-15 03:54:48,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-15 03:54:48,590 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 56 [2022-02-15 03:54:48,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:48,591 INFO L225 Difference]: With dead ends: 72 [2022-02-15 03:54:48,591 INFO L226 Difference]: Without dead ends: 70 [2022-02-15 03:54:48,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=1001, Unknown=0, NotChecked=0, Total=1122 [2022-02-15 03:54:48,592 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 50 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:48,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 87 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:54:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-02-15 03:54:48,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2022-02-15 03:54:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.0392156862745099) internal successors, (53), 52 states have internal predecessors, (53), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:54:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2022-02-15 03:54:48,601 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 56 [2022-02-15 03:54:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:48,602 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2022-02-15 03:54:48,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:54:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2022-02-15 03:54:48,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 03:54:48,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:48,603 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:48,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 03:54:48,603 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:48,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:48,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1978425946, now seen corresponding path program 9 times [2022-02-15 03:54:48,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:48,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917765462] [2022-02-15 03:54:48,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:48,605 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:48,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:48,606 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-15 03:54:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-15 03:54:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-15 03:54:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-15 03:54:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:54:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:48,728 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:48,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917765462] [2022-02-15 03:54:48,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [917765462] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:48,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:48,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-15 03:54:48,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903412740] [2022-02-15 03:54:48,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:48,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-15 03:54:48,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:48,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-15 03:54:48,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-02-15 03:54:48,730 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:54:48,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:48,970 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2022-02-15 03:54:48,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 03:54:48,970 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 64 [2022-02-15 03:54:48,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:48,971 INFO L225 Difference]: With dead ends: 102 [2022-02-15 03:54:48,971 INFO L226 Difference]: Without dead ends: 70 [2022-02-15 03:54:48,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-02-15 03:54:48,972 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 42 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:48,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 65 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:48,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-02-15 03:54:48,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2022-02-15 03:54:48,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 54 states have internal predecessors, (55), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:54:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2022-02-15 03:54:48,980 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 64 [2022-02-15 03:54:48,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:48,980 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2022-02-15 03:54:48,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:54:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2022-02-15 03:54:48,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 03:54:48,981 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:48,981 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:48,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 03:54:48,981 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:48,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:48,982 INFO L85 PathProgramCache]: Analyzing trace with hash -442513660, now seen corresponding path program 10 times [2022-02-15 03:54:48,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:48,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059385185] [2022-02-15 03:54:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:48,983 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:48,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:48,984 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:49,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-15 03:54:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-15 03:54:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:49,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-15 03:54:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:49,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-15 03:54:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:49,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:54:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:49,252 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:49,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059385185] [2022-02-15 03:54:49,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2059385185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:49,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:49,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-15 03:54:49,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827554317] [2022-02-15 03:54:49,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:49,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-15 03:54:49,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-15 03:54:49,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2022-02-15 03:54:49,254 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:54:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:49,866 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2022-02-15 03:54:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 03:54:49,866 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 66 [2022-02-15 03:54:49,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:49,867 INFO L225 Difference]: With dead ends: 82 [2022-02-15 03:54:49,867 INFO L226 Difference]: Without dead ends: 80 [2022-02-15 03:54:49,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=1271, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 03:54:49,869 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 55 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:49,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 106 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:54:49,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-02-15 03:54:49,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2022-02-15 03:54:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 60 states have internal predecessors, (61), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:54:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2022-02-15 03:54:49,877 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 66 [2022-02-15 03:54:49,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:49,877 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2022-02-15 03:54:49,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:54:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2022-02-15 03:54:49,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 03:54:49,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:49,878 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:49,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 03:54:49,878 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:49,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:49,878 INFO L85 PathProgramCache]: Analyzing trace with hash -832116514, now seen corresponding path program 11 times [2022-02-15 03:54:49,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:49,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229114975] [2022-02-15 03:54:49,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:49,886 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:49,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:49,888 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-15 03:54:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-15 03:54:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-15 03:54:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-15 03:54:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:54:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:54:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:50,024 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:50,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229114975] [2022-02-15 03:54:50,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1229114975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:50,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:50,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-15 03:54:50,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350008244] [2022-02-15 03:54:50,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:50,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-15 03:54:50,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:50,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-15 03:54:50,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-15 03:54:50,025 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:54:50,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:50,351 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2022-02-15 03:54:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 03:54:50,351 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 74 [2022-02-15 03:54:50,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:50,352 INFO L225 Difference]: With dead ends: 116 [2022-02-15 03:54:50,352 INFO L226 Difference]: Without dead ends: 80 [2022-02-15 03:54:50,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=232, Invalid=824, Unknown=0, NotChecked=0, Total=1056 [2022-02-15 03:54:50,354 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 44 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:50,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 62 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-02-15 03:54:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2022-02-15 03:54:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 62 states have internal predecessors, (63), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:54:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2022-02-15 03:54:50,365 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 74 [2022-02-15 03:54:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:50,365 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2022-02-15 03:54:50,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:54:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2022-02-15 03:54:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-15 03:54:50,366 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:50,366 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:50,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 03:54:50,366 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:50,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:50,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2005759164, now seen corresponding path program 12 times [2022-02-15 03:54:50,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:50,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806204505] [2022-02-15 03:54:50,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:50,368 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:50,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:50,369 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-15 03:54:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-15 03:54:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-15 03:54:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-15 03:54:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:54:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:54:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:50,673 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:50,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806204505] [2022-02-15 03:54:50,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [806204505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:50,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:50,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-15 03:54:50,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439829861] [2022-02-15 03:54:50,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:50,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-15 03:54:50,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:50,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-15 03:54:50,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2022-02-15 03:54:50,675 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:54:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:51,338 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2022-02-15 03:54:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-15 03:54:51,339 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 76 [2022-02-15 03:54:51,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:51,340 INFO L225 Difference]: With dead ends: 92 [2022-02-15 03:54:51,340 INFO L226 Difference]: Without dead ends: 90 [2022-02-15 03:54:51,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=1573, Unknown=0, NotChecked=0, Total=1722 [2022-02-15 03:54:51,341 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 60 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:51,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 117 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:54:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-02-15 03:54:51,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2022-02-15 03:54:51,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.0298507462686568) internal successors, (69), 68 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:54:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2022-02-15 03:54:51,349 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 76 [2022-02-15 03:54:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:51,349 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2022-02-15 03:54:51,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:54:51,349 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2022-02-15 03:54:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 03:54:51,350 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:51,350 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:51,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 03:54:51,350 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:51,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:51,350 INFO L85 PathProgramCache]: Analyzing trace with hash -209232234, now seen corresponding path program 13 times [2022-02-15 03:54:51,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:51,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6571873] [2022-02-15 03:54:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:51,351 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:51,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:51,352 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-15 03:54:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-15 03:54:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-15 03:54:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-15 03:54:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:54:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:54:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:54:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:51,525 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:51,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6571873] [2022-02-15 03:54:51,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [6571873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:51,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:51,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-15 03:54:51,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682884728] [2022-02-15 03:54:51,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:51,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-15 03:54:51,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:51,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-15 03:54:51,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-02-15 03:54:51,527 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 states have internal predecessors, (48), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:54:51,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:51,872 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2022-02-15 03:54:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 03:54:51,872 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 states have internal predecessors, (48), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 84 [2022-02-15 03:54:51,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:51,873 INFO L225 Difference]: With dead ends: 130 [2022-02-15 03:54:51,873 INFO L226 Difference]: Without dead ends: 90 [2022-02-15 03:54:51,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=1045, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 03:54:51,876 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:51,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 74 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:51,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-02-15 03:54:51,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2022-02-15 03:54:51,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 70 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:54:51,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2022-02-15 03:54:51,888 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 84 [2022-02-15 03:54:51,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:51,888 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2022-02-15 03:54:51,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 states have internal predecessors, (48), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:54:51,888 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2022-02-15 03:54:51,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-15 03:54:51,889 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:51,889 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:51,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 03:54:51,889 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:51,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:51,889 INFO L85 PathProgramCache]: Analyzing trace with hash 814689524, now seen corresponding path program 14 times [2022-02-15 03:54:51,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:51,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530180955] [2022-02-15 03:54:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:51,891 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:51,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:51,892 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-15 03:54:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-15 03:54:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-15 03:54:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-15 03:54:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:54:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:54:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:54:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:52,175 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:52,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530180955] [2022-02-15 03:54:52,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [530180955] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:52,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:52,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-15 03:54:52,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300095513] [2022-02-15 03:54:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:52,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-15 03:54:52,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-15 03:54:52,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2022-02-15 03:54:52,177 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 22 states have internal predecessors, (50), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:54:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:53,022 INFO L93 Difference]: Finished difference Result 102 states and 103 transitions. [2022-02-15 03:54:53,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-15 03:54:53,022 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 22 states have internal predecessors, (50), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 86 [2022-02-15 03:54:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:53,023 INFO L225 Difference]: With dead ends: 102 [2022-02-15 03:54:53,023 INFO L226 Difference]: Without dead ends: 100 [2022-02-15 03:54:53,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=1907, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 03:54:53,024 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 65 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:53,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 120 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:54:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-02-15 03:54:53,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2022-02-15 03:54:53,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 76 states have internal predecessors, (77), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:54:53,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2022-02-15 03:54:53,034 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 86 [2022-02-15 03:54:53,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:53,034 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2022-02-15 03:54:53,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 22 states have internal predecessors, (50), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:54:53,034 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2022-02-15 03:54:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-15 03:54:53,035 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:53,035 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:53,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 03:54:53,035 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:53,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:53,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1169596722, now seen corresponding path program 15 times [2022-02-15 03:54:53,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:53,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021700338] [2022-02-15 03:54:53,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:53,036 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:53,037 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-15 03:54:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-15 03:54:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-15 03:54:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-15 03:54:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:54:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:54:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:54:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:54:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:53,202 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:53,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021700338] [2022-02-15 03:54:53,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2021700338] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:53,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:53,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-15 03:54:53,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959561345] [2022-02-15 03:54:53,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:53,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-15 03:54:53,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:53,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-15 03:54:53,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2022-02-15 03:54:53,204 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. Second operand has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:54:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:53,543 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2022-02-15 03:54:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 03:54:53,543 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 94 [2022-02-15 03:54:53,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:53,544 INFO L225 Difference]: With dead ends: 144 [2022-02-15 03:54:53,544 INFO L226 Difference]: Without dead ends: 100 [2022-02-15 03:54:53,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=1292, Unknown=0, NotChecked=0, Total=1640 [2022-02-15 03:54:53,546 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 48 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:53,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 76 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:54:53,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-02-15 03:54:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2022-02-15 03:54:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.025974025974026) internal successors, (79), 78 states have internal predecessors, (79), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:54:53,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2022-02-15 03:54:53,561 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 94 [2022-02-15 03:54:53,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:53,561 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2022-02-15 03:54:53,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:54:53,562 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2022-02-15 03:54:53,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-15 03:54:53,562 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:53,562 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:53,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 03:54:53,562 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:53,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:53,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1315000236, now seen corresponding path program 16 times [2022-02-15 03:54:53,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:53,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914840774] [2022-02-15 03:54:53,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:53,564 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:53,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:53,565 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-15 03:54:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-15 03:54:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-15 03:54:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:54:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:54:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:54:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:54:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:54:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:53,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:53,926 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:53,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914840774] [2022-02-15 03:54:53,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1914840774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:53,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:53,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-15 03:54:53,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442669408] [2022-02-15 03:54:53,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:53,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-15 03:54:53,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:53,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-15 03:54:53,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2022-02-15 03:54:53,928 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand has 26 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:54:54,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:54,832 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2022-02-15 03:54:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 03:54:54,833 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 96 [2022-02-15 03:54:54,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:54,833 INFO L225 Difference]: With dead ends: 112 [2022-02-15 03:54:54,833 INFO L226 Difference]: Without dead ends: 110 [2022-02-15 03:54:54,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=2273, Unknown=0, NotChecked=0, Total=2450 [2022-02-15 03:54:54,835 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:54,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 131 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:54:54,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-02-15 03:54:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2022-02-15 03:54:54,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 83 states have (on average 1.0240963855421688) internal successors, (85), 84 states have internal predecessors, (85), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:54:54,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 108 transitions. [2022-02-15 03:54:54,845 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 108 transitions. Word has length 96 [2022-02-15 03:54:54,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:54,846 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 108 transitions. [2022-02-15 03:54:54,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:54:54,846 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 108 transitions. [2022-02-15 03:54:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 03:54:54,847 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:54,847 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:54,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 03:54:54,847 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:54,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:54,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1911993978, now seen corresponding path program 17 times [2022-02-15 03:54:54,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:54,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029261940] [2022-02-15 03:54:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:54,848 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:54,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:54,849 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-15 03:54:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-15 03:54:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-15 03:54:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:54:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:54:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:54:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:54:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:54:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:54:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:55,079 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:55,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029261940] [2022-02-15 03:54:55,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2029261940] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:55,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:55,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-15 03:54:55,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677802782] [2022-02-15 03:54:55,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:55,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-15 03:54:55,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:55,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-15 03:54:55,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2022-02-15 03:54:55,081 INFO L87 Difference]: Start difference. First operand 107 states and 108 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:54:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:55,510 INFO L93 Difference]: Finished difference Result 158 states and 169 transitions. [2022-02-15 03:54:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 03:54:55,510 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 104 [2022-02-15 03:54:55,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:55,513 INFO L225 Difference]: With dead ends: 158 [2022-02-15 03:54:55,513 INFO L226 Difference]: Without dead ends: 110 [2022-02-15 03:54:55,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=415, Invalid=1565, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 03:54:55,514 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 50 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:55,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 68 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:54:55,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-02-15 03:54:55,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2022-02-15 03:54:55,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 85 states have (on average 1.0235294117647058) internal successors, (87), 86 states have internal predecessors, (87), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:54:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2022-02-15 03:54:55,529 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 104 [2022-02-15 03:54:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:55,529 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2022-02-15 03:54:55,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:54:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2022-02-15 03:54:55,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-15 03:54:55,530 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:55,531 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:55,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 03:54:55,531 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:55,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:55,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1220002588, now seen corresponding path program 18 times [2022-02-15 03:54:55,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:55,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165718181] [2022-02-15 03:54:55,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:55,532 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:55,533 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-15 03:54:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-15 03:54:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-15 03:54:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:54:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:54:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:54:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:54:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:54:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:54:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:55,906 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:55,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165718181] [2022-02-15 03:54:55,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1165718181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:55,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:55,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-15 03:54:55,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698725580] [2022-02-15 03:54:55,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:55,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-15 03:54:55,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:55,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-15 03:54:55,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2022-02-15 03:54:55,907 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:54:56,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:56,932 INFO L93 Difference]: Finished difference Result 122 states and 123 transitions. [2022-02-15 03:54:56,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 03:54:56,932 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 106 [2022-02-15 03:54:56,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:56,933 INFO L225 Difference]: With dead ends: 122 [2022-02-15 03:54:56,933 INFO L226 Difference]: Without dead ends: 120 [2022-02-15 03:54:56,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=2671, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 03:54:56,934 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 75 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:56,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 142 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-15 03:54:56,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-02-15 03:54:56,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2022-02-15 03:54:56,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 91 states have (on average 1.021978021978022) internal successors, (93), 92 states have internal predecessors, (93), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:54:56,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2022-02-15 03:54:56,947 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 106 [2022-02-15 03:54:56,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:56,948 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2022-02-15 03:54:56,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:54:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2022-02-15 03:54:56,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-15 03:54:56,948 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:56,948 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:56,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 03:54:56,949 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:56,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:56,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2058059454, now seen corresponding path program 19 times [2022-02-15 03:54:56,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:56,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359822250] [2022-02-15 03:54:56,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:56,950 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:56,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:56,951 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-15 03:54:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-15 03:54:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-15 03:54:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:54:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:54:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:54:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:54:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:54:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:54:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:54:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:57,190 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:57,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359822250] [2022-02-15 03:54:57,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [359822250] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:57,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:57,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-15 03:54:57,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125224253] [2022-02-15 03:54:57,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:57,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-15 03:54:57,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:57,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-15 03:54:57,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2022-02-15 03:54:57,191 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:54:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:57,709 INFO L93 Difference]: Finished difference Result 172 states and 184 transitions. [2022-02-15 03:54:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 03:54:57,710 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 114 [2022-02-15 03:54:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:57,711 INFO L225 Difference]: With dead ends: 172 [2022-02-15 03:54:57,711 INFO L226 Difference]: Without dead ends: 120 [2022-02-15 03:54:57,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=488, Invalid=1864, Unknown=0, NotChecked=0, Total=2352 [2022-02-15 03:54:57,712 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 52 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:57,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 75 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:54:57,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-02-15 03:54:57,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2022-02-15 03:54:57,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 93 states have (on average 1.021505376344086) internal successors, (95), 94 states have internal predecessors, (95), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:54:57,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2022-02-15 03:54:57,730 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 114 [2022-02-15 03:54:57,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:57,730 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2022-02-15 03:54:57,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:54:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2022-02-15 03:54:57,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-02-15 03:54:57,731 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:57,731 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:57,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 03:54:57,731 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:57,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:57,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1880118428, now seen corresponding path program 20 times [2022-02-15 03:54:57,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:57,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098416747] [2022-02-15 03:54:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:57,733 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:57,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:57,734 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-15 03:54:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-15 03:54:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-15 03:54:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:54:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:54:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:54:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:54:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:54:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:54:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:54:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:58,136 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:58,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098416747] [2022-02-15 03:54:58,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1098416747] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:58,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:58,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 03:54:58,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772916464] [2022-02-15 03:54:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:58,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 03:54:58,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:58,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 03:54:58,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=810, Unknown=0, NotChecked=0, Total=870 [2022-02-15 03:54:58,137 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:54:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:59,417 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2022-02-15 03:54:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-15 03:54:59,418 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 116 [2022-02-15 03:54:59,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:59,418 INFO L225 Difference]: With dead ends: 132 [2022-02-15 03:54:59,418 INFO L226 Difference]: Without dead ends: 130 [2022-02-15 03:54:59,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=205, Invalid=3101, Unknown=0, NotChecked=0, Total=3306 [2022-02-15 03:54:59,420 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 80 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:59,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 157 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-15 03:54:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-02-15 03:54:59,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-02-15 03:54:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 99 states have (on average 1.02020202020202) internal successors, (101), 100 states have internal predecessors, (101), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:54:59,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 128 transitions. [2022-02-15 03:54:59,437 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 128 transitions. Word has length 116 [2022-02-15 03:54:59,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:59,437 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 128 transitions. [2022-02-15 03:54:59,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:54:59,437 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 128 transitions. [2022-02-15 03:54:59,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-15 03:54:59,438 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:59,438 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:59,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 03:54:59,438 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:59,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1566810506, now seen corresponding path program 21 times [2022-02-15 03:54:59,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:59,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016434089] [2022-02-15 03:54:59,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:59,440 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:59,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:59,441 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-15 03:54:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-15 03:54:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-15 03:54:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:54:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:54:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:54:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:54:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:54:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:54:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:54:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:54:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:54:59,696 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:59,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016434089] [2022-02-15 03:54:59,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1016434089] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:59,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:59,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-15 03:54:59,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145595789] [2022-02-15 03:54:59,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:59,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-15 03:54:59,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:59,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-15 03:54:59,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2022-02-15 03:54:59,697 INFO L87 Difference]: Start difference. First operand 127 states and 128 transitions. Second operand has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:55:00,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:00,241 INFO L93 Difference]: Finished difference Result 186 states and 199 transitions. [2022-02-15 03:55:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 03:55:00,241 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 124 [2022-02-15 03:55:00,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:00,243 INFO L225 Difference]: With dead ends: 186 [2022-02-15 03:55:00,243 INFO L226 Difference]: Without dead ends: 130 [2022-02-15 03:55:00,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=567, Invalid=2189, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 03:55:00,245 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 54 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:00,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 77 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:55:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-02-15 03:55:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2022-02-15 03:55:00,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 101 states have (on average 1.0198019801980198) internal successors, (103), 102 states have internal predecessors, (103), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:55:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2022-02-15 03:55:00,265 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 124 [2022-02-15 03:55:00,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:00,265 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2022-02-15 03:55:00,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:55:00,265 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2022-02-15 03:55:00,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-15 03:55:00,266 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:00,266 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:00,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 03:55:00,266 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:00,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1844578604, now seen corresponding path program 22 times [2022-02-15 03:55:00,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:00,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099030111] [2022-02-15 03:55:00,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:00,269 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:00,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:00,270 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-15 03:55:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-15 03:55:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-15 03:55:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:55:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:55:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:55:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:55:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:55:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:55:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:55:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:55:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:00,785 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:00,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099030111] [2022-02-15 03:55:00,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2099030111] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:00,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:00,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-15 03:55:00,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354682969] [2022-02-15 03:55:00,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:00,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-15 03:55:00,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:00,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-15 03:55:00,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=928, Unknown=0, NotChecked=0, Total=992 [2022-02-15 03:55:00,786 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand has 32 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:55:02,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:02,534 INFO L93 Difference]: Finished difference Result 142 states and 143 transitions. [2022-02-15 03:55:02,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-15 03:55:02,535 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 126 [2022-02-15 03:55:02,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:02,536 INFO L225 Difference]: With dead ends: 142 [2022-02-15 03:55:02,536 INFO L226 Difference]: Without dead ends: 140 [2022-02-15 03:55:02,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=219, Invalid=3563, Unknown=0, NotChecked=0, Total=3782 [2022-02-15 03:55:02,537 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2783 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:02,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 172 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2783 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-15 03:55:02,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-02-15 03:55:02,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-02-15 03:55:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 107 states have (on average 1.0186915887850467) internal successors, (109), 108 states have internal predecessors, (109), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:55:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 138 transitions. [2022-02-15 03:55:02,560 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 138 transitions. Word has length 126 [2022-02-15 03:55:02,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:02,561 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 138 transitions. [2022-02-15 03:55:02,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:55:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 138 transitions. [2022-02-15 03:55:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 03:55:02,562 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:02,562 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:02,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 03:55:02,562 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:02,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:02,563 INFO L85 PathProgramCache]: Analyzing trace with hash 886065326, now seen corresponding path program 23 times [2022-02-15 03:55:02,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:02,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539438542] [2022-02-15 03:55:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:02,564 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:02,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:02,565 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-15 03:55:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-15 03:55:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-15 03:55:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:55:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:55:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:55:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:55:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:55:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:55:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:55:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:55:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:55:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:02,897 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:02,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539438542] [2022-02-15 03:55:02,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1539438542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:02,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:02,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 03:55:02,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242683621] [2022-02-15 03:55:02,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:02,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 03:55:02,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:02,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 03:55:02,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2022-02-15 03:55:02,898 INFO L87 Difference]: Start difference. First operand 137 states and 138 transitions. Second operand has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:55:03,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:03,524 INFO L93 Difference]: Finished difference Result 200 states and 214 transitions. [2022-02-15 03:55:03,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 03:55:03,524 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 134 [2022-02-15 03:55:03,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:03,526 INFO L225 Difference]: With dead ends: 200 [2022-02-15 03:55:03,526 INFO L226 Difference]: Without dead ends: 140 [2022-02-15 03:55:03,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=652, Invalid=2540, Unknown=0, NotChecked=0, Total=3192 [2022-02-15 03:55:03,528 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 56 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:03,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 79 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:55:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-02-15 03:55:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2022-02-15 03:55:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 109 states have (on average 1.018348623853211) internal successors, (111), 110 states have internal predecessors, (111), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:55:03,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2022-02-15 03:55:03,566 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 134 [2022-02-15 03:55:03,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:03,567 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2022-02-15 03:55:03,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:55:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2022-02-15 03:55:03,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-02-15 03:55:03,569 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:03,569 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:03,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 03:55:03,569 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:03,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:03,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1055030388, now seen corresponding path program 24 times [2022-02-15 03:55:03,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:03,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050079591] [2022-02-15 03:55:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:03,571 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:03,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:03,574 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-15 03:55:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-15 03:55:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:55:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:55:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:55:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:55:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:55:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:55:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:55:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:55:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:55:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:55:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:04,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:04,291 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:04,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050079591] [2022-02-15 03:55:04,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1050079591] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:04,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:04,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-15 03:55:04,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073213711] [2022-02-15 03:55:04,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:04,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-15 03:55:04,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:04,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-15 03:55:04,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2022-02-15 03:55:04,293 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand has 34 states, 33 states have (on average 2.272727272727273) internal successors, (75), 32 states have internal predecessors, (75), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:55:05,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:05,514 INFO L93 Difference]: Finished difference Result 152 states and 153 transitions. [2022-02-15 03:55:05,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 03:55:05,520 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.272727272727273) internal successors, (75), 32 states have internal predecessors, (75), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 136 [2022-02-15 03:55:05,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:05,521 INFO L225 Difference]: With dead ends: 152 [2022-02-15 03:55:05,521 INFO L226 Difference]: Without dead ends: 150 [2022-02-15 03:55:05,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=245, Invalid=4045, Unknown=0, NotChecked=0, Total=4290 [2022-02-15 03:55:05,522 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 88 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:05,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 179 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3088 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-15 03:55:05,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-02-15 03:55:05,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2022-02-15 03:55:05,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 115 states have (on average 1.017391304347826) internal successors, (117), 116 states have internal predecessors, (117), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:55:05,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2022-02-15 03:55:05,547 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 136 [2022-02-15 03:55:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:05,547 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2022-02-15 03:55:05,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.272727272727273) internal successors, (75), 32 states have internal predecessors, (75), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:55:05,547 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2022-02-15 03:55:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-15 03:55:05,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:05,548 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:05,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 03:55:05,548 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:05,549 INFO L85 PathProgramCache]: Analyzing trace with hash -490496666, now seen corresponding path program 25 times [2022-02-15 03:55:05,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:05,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137266786] [2022-02-15 03:55:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:05,550 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:05,551 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-15 03:55:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-15 03:55:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:55:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:55:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:55:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:55:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:55:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:55:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:55:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:55:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:55:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:55:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:55:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:05,869 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:05,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137266786] [2022-02-15 03:55:05,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [137266786] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:05,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:05,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-15 03:55:05,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96195749] [2022-02-15 03:55:05,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:05,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-15 03:55:05,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:05,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-15 03:55:05,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2022-02-15 03:55:05,872 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:55:06,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:06,512 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2022-02-15 03:55:06,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-15 03:55:06,512 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 144 [2022-02-15 03:55:06,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:06,513 INFO L225 Difference]: With dead ends: 214 [2022-02-15 03:55:06,513 INFO L226 Difference]: Without dead ends: 150 [2022-02-15 03:55:06,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=743, Invalid=2917, Unknown=0, NotChecked=0, Total=3660 [2022-02-15 03:55:06,515 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 58 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:06,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 71 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:55:06,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-02-15 03:55:06,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2022-02-15 03:55:06,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 117 states have (on average 1.017094017094017) internal successors, (119), 118 states have internal predecessors, (119), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:55:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 150 transitions. [2022-02-15 03:55:06,548 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 150 transitions. Word has length 144 [2022-02-15 03:55:06,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:06,549 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 150 transitions. [2022-02-15 03:55:06,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:55:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 150 transitions. [2022-02-15 03:55:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-15 03:55:06,550 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:06,550 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:06,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 03:55:06,551 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:06,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:06,551 INFO L85 PathProgramCache]: Analyzing trace with hash 564353732, now seen corresponding path program 26 times [2022-02-15 03:55:06,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:06,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968605069] [2022-02-15 03:55:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:06,553 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:06,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:06,555 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-15 03:55:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-15 03:55:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:55:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:55:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:55:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:55:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:55:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:55:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:55:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:55:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:55:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:55:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:55:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:07,104 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:07,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968605069] [2022-02-15 03:55:07,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1968605069] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:07,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:07,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-15 03:55:07,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597890536] [2022-02-15 03:55:07,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:07,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-15 03:55:07,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:07,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-15 03:55:07,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1188, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 03:55:07,106 INFO L87 Difference]: Start difference. First operand 149 states and 150 transitions. Second operand has 36 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 34 states have internal predecessors, (80), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:55:09,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:09,160 INFO L93 Difference]: Finished difference Result 162 states and 163 transitions. [2022-02-15 03:55:09,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 03:55:09,161 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 34 states have internal predecessors, (80), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 146 [2022-02-15 03:55:09,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:09,162 INFO L225 Difference]: With dead ends: 162 [2022-02-15 03:55:09,162 INFO L226 Difference]: Without dead ends: 160 [2022-02-15 03:55:09,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=247, Invalid=4583, Unknown=0, NotChecked=0, Total=4830 [2022-02-15 03:55:09,163 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 95 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 3578 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 3578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:09,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 190 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 3578 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-15 03:55:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-02-15 03:55:09,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2022-02-15 03:55:09,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 123 states have (on average 1.016260162601626) internal successors, (125), 124 states have internal predecessors, (125), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:55:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 158 transitions. [2022-02-15 03:55:09,188 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 158 transitions. Word has length 146 [2022-02-15 03:55:09,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:09,188 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 158 transitions. [2022-02-15 03:55:09,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 34 states have internal predecessors, (80), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:55:09,189 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 158 transitions. [2022-02-15 03:55:09,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-15 03:55:09,189 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:09,189 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:09,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 03:55:09,190 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:09,190 INFO L85 PathProgramCache]: Analyzing trace with hash -696599394, now seen corresponding path program 27 times [2022-02-15 03:55:09,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:09,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071569069] [2022-02-15 03:55:09,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:09,191 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:09,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:09,195 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-15 03:55:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-15 03:55:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:55:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:55:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:55:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:55:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:55:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:55:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:55:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:55:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:55:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:55:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:55:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:55:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:09,597 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:09,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071569069] [2022-02-15 03:55:09,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2071569069] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:09,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:09,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-15 03:55:09,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024907742] [2022-02-15 03:55:09,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:09,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-15 03:55:09,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:09,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-15 03:55:09,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-02-15 03:55:09,599 INFO L87 Difference]: Start difference. First operand 157 states and 158 transitions. Second operand has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 33 states have internal predecessors, (83), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:55:10,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:10,328 INFO L93 Difference]: Finished difference Result 228 states and 244 transitions. [2022-02-15 03:55:10,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 03:55:10,329 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 33 states have internal predecessors, (83), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 154 [2022-02-15 03:55:10,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:10,331 INFO L225 Difference]: With dead ends: 228 [2022-02-15 03:55:10,331 INFO L226 Difference]: Without dead ends: 160 [2022-02-15 03:55:10,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=840, Invalid=3320, Unknown=0, NotChecked=0, Total=4160 [2022-02-15 03:55:10,336 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 60 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:10,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 88 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 03:55:10,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-02-15 03:55:10,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2022-02-15 03:55:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 125 states have (on average 1.016) internal successors, (127), 126 states have internal predecessors, (127), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:55:10,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2022-02-15 03:55:10,362 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 154 [2022-02-15 03:55:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:10,362 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2022-02-15 03:55:10,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 33 states have internal predecessors, (83), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:55:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2022-02-15 03:55:10,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-15 03:55:10,363 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:10,363 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:10,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 03:55:10,364 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:10,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash -829694852, now seen corresponding path program 28 times [2022-02-15 03:55:10,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:10,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270220018] [2022-02-15 03:55:10,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:10,365 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:10,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:10,366 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-15 03:55:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-15 03:55:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:55:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:55:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:55:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:55:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:55:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:55:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:55:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:55:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:55:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:55:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:55:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:55:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:10,985 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:10,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270220018] [2022-02-15 03:55:10,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1270220018] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:10,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:10,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-15 03:55:10,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070248811] [2022-02-15 03:55:10,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:10,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-15 03:55:10,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:10,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-15 03:55:10,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1330, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 03:55:10,987 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand has 38 states, 37 states have (on average 2.2972972972972974) internal successors, (85), 36 states have internal predecessors, (85), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:55:12,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:12,873 INFO L93 Difference]: Finished difference Result 172 states and 173 transitions. [2022-02-15 03:55:12,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-15 03:55:12,874 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.2972972972972974) internal successors, (85), 36 states have internal predecessors, (85), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 156 [2022-02-15 03:55:12,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:12,875 INFO L225 Difference]: With dead ends: 172 [2022-02-15 03:55:12,875 INFO L226 Difference]: Without dead ends: 170 [2022-02-15 03:55:12,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=261, Invalid=5141, Unknown=0, NotChecked=0, Total=5402 [2022-02-15 03:55:12,876 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 100 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 4094 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 4194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 4094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:12,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 205 Invalid, 4194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 4094 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-15 03:55:12,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-15 03:55:12,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2022-02-15 03:55:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 131 states have (on average 1.015267175572519) internal successors, (133), 132 states have internal predecessors, (133), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:55:12,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 168 transitions. [2022-02-15 03:55:12,903 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 168 transitions. Word has length 156 [2022-02-15 03:55:12,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:12,904 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 168 transitions. [2022-02-15 03:55:12,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.2972972972972974) internal successors, (85), 36 states have internal predecessors, (85), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:55:12,904 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 168 transitions. [2022-02-15 03:55:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-15 03:55:12,906 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:12,906 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:12,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 03:55:12,906 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:12,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:12,906 INFO L85 PathProgramCache]: Analyzing trace with hash 679609942, now seen corresponding path program 29 times [2022-02-15 03:55:12,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:12,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156357532] [2022-02-15 03:55:12,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:12,908 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:12,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:12,910 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-15 03:55:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-15 03:55:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:55:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:55:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:55:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:55:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:55:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:55:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:55:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:55:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:55:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:55:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:55:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:55:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:55:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:13,284 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:13,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156357532] [2022-02-15 03:55:13,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1156357532] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:13,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:13,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-15 03:55:13,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456800888] [2022-02-15 03:55:13,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:13,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-15 03:55:13,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:13,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-15 03:55:13,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 03:55:13,286 INFO L87 Difference]: Start difference. First operand 167 states and 168 transitions. Second operand has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 35 states have internal predecessors, (88), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:55:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:14,062 INFO L93 Difference]: Finished difference Result 242 states and 259 transitions. [2022-02-15 03:55:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 03:55:14,062 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 35 states have internal predecessors, (88), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 164 [2022-02-15 03:55:14,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:14,063 INFO L225 Difference]: With dead ends: 242 [2022-02-15 03:55:14,063 INFO L226 Difference]: Without dead ends: 170 [2022-02-15 03:55:14,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=943, Invalid=3749, Unknown=0, NotChecked=0, Total=4692 [2022-02-15 03:55:14,064 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 62 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:14,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 95 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 03:55:14,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-15 03:55:14,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 169. [2022-02-15 03:55:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 133 states have (on average 1.0150375939849625) internal successors, (135), 134 states have internal predecessors, (135), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:55:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 170 transitions. [2022-02-15 03:55:14,088 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 170 transitions. Word has length 164 [2022-02-15 03:55:14,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:14,088 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 170 transitions. [2022-02-15 03:55:14,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 35 states have internal predecessors, (88), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:55:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 170 transitions. [2022-02-15 03:55:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-15 03:55:14,089 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:14,089 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:14,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 03:55:14,089 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:14,090 INFO L85 PathProgramCache]: Analyzing trace with hash -817141580, now seen corresponding path program 30 times [2022-02-15 03:55:14,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:14,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742860851] [2022-02-15 03:55:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:14,091 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:14,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:14,092 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-15 03:55:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-15 03:55:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:55:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:55:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:55:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:55:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:55:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:55:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:55:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:55:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:55:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:55:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:55:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:55:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:55:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:14,710 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:14,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742860851] [2022-02-15 03:55:14,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1742860851] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:14,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:14,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-15 03:55:14,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777824732] [2022-02-15 03:55:14,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:14,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-15 03:55:14,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:14,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-15 03:55:14,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1480, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 03:55:14,712 INFO L87 Difference]: Start difference. First operand 169 states and 170 transitions. Second operand has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:55:16,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:16,901 INFO L93 Difference]: Finished difference Result 182 states and 183 transitions. [2022-02-15 03:55:16,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-15 03:55:16,905 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 166 [2022-02-15 03:55:16,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:16,906 INFO L225 Difference]: With dead ends: 182 [2022-02-15 03:55:16,906 INFO L226 Difference]: Without dead ends: 180 [2022-02-15 03:55:16,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=275, Invalid=5731, Unknown=0, NotChecked=0, Total=6006 [2022-02-15 03:55:16,909 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 105 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 4404 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 4510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:16,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 208 Invalid, 4510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4404 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-15 03:55:16,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-15 03:55:16,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2022-02-15 03:55:16,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.014388489208633) internal successors, (141), 140 states have internal predecessors, (141), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:55:16,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2022-02-15 03:55:16,939 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 166 [2022-02-15 03:55:16,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:16,939 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2022-02-15 03:55:16,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:55:16,940 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2022-02-15 03:55:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-15 03:55:16,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:16,940 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:16,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 03:55:16,941 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:16,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:16,941 INFO L85 PathProgramCache]: Analyzing trace with hash -705832306, now seen corresponding path program 31 times [2022-02-15 03:55:16,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:16,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083885518] [2022-02-15 03:55:16,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:16,942 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:16,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:16,944 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-15 03:55:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-15 03:55:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:55:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:55:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:55:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:55:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:55:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:55:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:55:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:55:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:55:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:55:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:55:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:55:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:55:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:55:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:17,552 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:17,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083885518] [2022-02-15 03:55:17,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1083885518] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:17,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:17,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-15 03:55:17,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219303514] [2022-02-15 03:55:17,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:17,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-15 03:55:17,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:17,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-15 03:55:17,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 03:55:17,554 INFO L87 Difference]: Start difference. First operand 177 states and 178 transitions. Second operand has 38 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 37 states have internal predecessors, (93), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:55:18,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:18,325 INFO L93 Difference]: Finished difference Result 256 states and 274 transitions. [2022-02-15 03:55:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 03:55:18,325 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 37 states have internal predecessors, (93), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 174 [2022-02-15 03:55:18,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:18,326 INFO L225 Difference]: With dead ends: 256 [2022-02-15 03:55:18,326 INFO L226 Difference]: Without dead ends: 180 [2022-02-15 03:55:18,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1052, Invalid=4204, Unknown=0, NotChecked=0, Total=5256 [2022-02-15 03:55:18,328 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 64 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:18,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 122 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 03:55:18,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-15 03:55:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 179. [2022-02-15 03:55:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 142 states have internal predecessors, (143), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:55:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2022-02-15 03:55:18,368 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 174 [2022-02-15 03:55:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:18,369 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2022-02-15 03:55:18,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 37 states have internal predecessors, (93), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:55:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2022-02-15 03:55:18,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-15 03:55:18,370 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:18,370 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:18,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 03:55:18,370 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:18,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1914806420, now seen corresponding path program 32 times [2022-02-15 03:55:18,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:18,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240428198] [2022-02-15 03:55:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:18,371 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:18,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:18,372 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-15 03:55:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:55:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:55:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:55:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:55:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:55:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:55:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:55:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:55:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:55:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:55:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:55:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:55:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:55:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:55:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:55:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:19,109 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:19,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240428198] [2022-02-15 03:55:19,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1240428198] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:19,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:19,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-15 03:55:19,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857831537] [2022-02-15 03:55:19,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:19,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-15 03:55:19,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:19,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-15 03:55:19,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1638, Unknown=0, NotChecked=0, Total=1722 [2022-02-15 03:55:19,111 INFO L87 Difference]: Start difference. First operand 179 states and 180 transitions. Second operand has 42 states, 41 states have (on average 2.317073170731707) internal successors, (95), 40 states have internal predecessors, (95), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:55:21,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:21,336 INFO L93 Difference]: Finished difference Result 192 states and 193 transitions. [2022-02-15 03:55:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 03:55:21,337 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 2.317073170731707) internal successors, (95), 40 states have internal predecessors, (95), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 176 [2022-02-15 03:55:21,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:21,338 INFO L225 Difference]: With dead ends: 192 [2022-02-15 03:55:21,338 INFO L226 Difference]: Without dead ends: 190 [2022-02-15 03:55:21,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=289, Invalid=6353, Unknown=0, NotChecked=0, Total=6642 [2022-02-15 03:55:21,339 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 5048 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 5160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 5048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:21,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 223 Invalid, 5160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 5048 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-15 03:55:21,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-02-15 03:55:21,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-02-15 03:55:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 147 states have (on average 1.0136054421768708) internal successors, (149), 148 states have internal predecessors, (149), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:55:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 188 transitions. [2022-02-15 03:55:21,369 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 188 transitions. Word has length 176 [2022-02-15 03:55:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:21,370 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 188 transitions. [2022-02-15 03:55:21,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 2.317073170731707) internal successors, (95), 40 states have internal predecessors, (95), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:55:21,370 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 188 transitions. [2022-02-15 03:55:21,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-02-15 03:55:21,371 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:21,371 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:21,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 03:55:21,371 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:21,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:21,372 INFO L85 PathProgramCache]: Analyzing trace with hash 911907142, now seen corresponding path program 33 times [2022-02-15 03:55:21,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:21,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118423927] [2022-02-15 03:55:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:21,373 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:21,375 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-15 03:55:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:55:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:55:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:55:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:55:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:55:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:55:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:55:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:55:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:55:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:55:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:55:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:55:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:55:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:55:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:55:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:55:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:21,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:21,763 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:21,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118423927] [2022-02-15 03:55:21,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [118423927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:21,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:21,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-15 03:55:21,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539832488] [2022-02-15 03:55:21,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:21,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-15 03:55:21,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:21,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-15 03:55:21,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 03:55:21,765 INFO L87 Difference]: Start difference. First operand 187 states and 188 transitions. Second operand has 40 states, 40 states have (on average 2.45) internal successors, (98), 39 states have internal predecessors, (98), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:55:22,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:22,542 INFO L93 Difference]: Finished difference Result 270 states and 289 transitions. [2022-02-15 03:55:22,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-15 03:55:22,543 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.45) internal successors, (98), 39 states have internal predecessors, (98), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 184 [2022-02-15 03:55:22,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:22,546 INFO L225 Difference]: With dead ends: 270 [2022-02-15 03:55:22,546 INFO L226 Difference]: Without dead ends: 190 [2022-02-15 03:55:22,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1167, Invalid=4685, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 03:55:22,548 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 66 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:22,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 79 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 03:55:22,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-02-15 03:55:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 189. [2022-02-15 03:55:22,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 149 states have (on average 1.0134228187919463) internal successors, (151), 150 states have internal predecessors, (151), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:55:22,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 190 transitions. [2022-02-15 03:55:22,586 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 190 transitions. Word has length 184 [2022-02-15 03:55:22,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:22,586 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 190 transitions. [2022-02-15 03:55:22,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.45) internal successors, (98), 39 states have internal predecessors, (98), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:55:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 190 transitions. [2022-02-15 03:55:22,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-02-15 03:55:22,587 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:22,587 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:22,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 03:55:22,588 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:22,588 INFO L85 PathProgramCache]: Analyzing trace with hash -859234140, now seen corresponding path program 34 times [2022-02-15 03:55:22,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:22,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512712531] [2022-02-15 03:55:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:22,589 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:22,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:22,590 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-15 03:55:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:55:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:55:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:55:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:55:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:55:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:55:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:55:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:55:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:55:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:55:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:55:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:55:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:55:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:55:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:55:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:55:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:23,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:23,508 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:23,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512712531] [2022-02-15 03:55:23,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [512712531] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:23,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:23,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-15 03:55:23,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242232629] [2022-02-15 03:55:23,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:23,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-15 03:55:23,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:23,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-15 03:55:23,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1804, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 03:55:23,510 INFO L87 Difference]: Start difference. First operand 189 states and 190 transitions. Second operand has 44 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 42 states have internal predecessors, (100), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:55:26,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:26,544 INFO L93 Difference]: Finished difference Result 202 states and 203 transitions. [2022-02-15 03:55:26,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 03:55:26,544 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 42 states have internal predecessors, (100), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 186 [2022-02-15 03:55:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:26,545 INFO L225 Difference]: With dead ends: 202 [2022-02-15 03:55:26,545 INFO L226 Difference]: Without dead ends: 200 [2022-02-15 03:55:26,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=303, Invalid=7007, Unknown=0, NotChecked=0, Total=7310 [2022-02-15 03:55:26,546 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 115 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 5657 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 5775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 5657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:26,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 238 Invalid, 5775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 5657 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-15 03:55:26,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-15 03:55:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2022-02-15 03:55:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 155 states have (on average 1.0129032258064516) internal successors, (157), 156 states have internal predecessors, (157), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:55:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 198 transitions. [2022-02-15 03:55:26,596 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 198 transitions. Word has length 186 [2022-02-15 03:55:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:26,597 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 198 transitions. [2022-02-15 03:55:26,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 42 states have internal predecessors, (100), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:55:26,597 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 198 transitions. [2022-02-15 03:55:26,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-02-15 03:55:26,598 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:26,598 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:26,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 03:55:26,598 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:26,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:26,599 INFO L85 PathProgramCache]: Analyzing trace with hash -236150146, now seen corresponding path program 35 times [2022-02-15 03:55:26,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:26,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367077771] [2022-02-15 03:55:26,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:26,600 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:26,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:26,601 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-15 03:55:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:55:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:55:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:55:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:55:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:55:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:55:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:55:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:55:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:55:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:55:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:55:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:55:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:55:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:55:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:55:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:55:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:55:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:27,203 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:27,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367077771] [2022-02-15 03:55:27,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1367077771] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:27,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:27,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-15 03:55:27,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794344804] [2022-02-15 03:55:27,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:27,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-15 03:55:27,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:27,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-15 03:55:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1316, Unknown=0, NotChecked=0, Total=1722 [2022-02-15 03:55:27,205 INFO L87 Difference]: Start difference. First operand 197 states and 198 transitions. Second operand has 42 states, 42 states have (on average 2.4523809523809526) internal successors, (103), 41 states have internal predecessors, (103), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:55:28,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:28,316 INFO L93 Difference]: Finished difference Result 284 states and 304 transitions. [2022-02-15 03:55:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-15 03:55:28,316 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.4523809523809526) internal successors, (103), 41 states have internal predecessors, (103), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 194 [2022-02-15 03:55:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:28,317 INFO L225 Difference]: With dead ends: 284 [2022-02-15 03:55:28,317 INFO L226 Difference]: Without dead ends: 200 [2022-02-15 03:55:28,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1475 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1288, Invalid=5192, Unknown=0, NotChecked=0, Total=6480 [2022-02-15 03:55:28,320 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 68 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:28,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 116 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:55:28,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-15 03:55:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2022-02-15 03:55:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 157 states have (on average 1.0127388535031847) internal successors, (159), 158 states have internal predecessors, (159), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:55:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 200 transitions. [2022-02-15 03:55:28,352 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 200 transitions. Word has length 194 [2022-02-15 03:55:28,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:28,353 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 200 transitions. [2022-02-15 03:55:28,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.4523809523809526) internal successors, (103), 41 states have internal predecessors, (103), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:55:28,353 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 200 transitions. [2022-02-15 03:55:28,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-15 03:55:28,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:28,354 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:28,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 03:55:28,354 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:28,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:28,354 INFO L85 PathProgramCache]: Analyzing trace with hash 488115292, now seen corresponding path program 36 times [2022-02-15 03:55:28,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:28,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454812190] [2022-02-15 03:55:28,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:28,355 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:28,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:28,356 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-15 03:55:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:55:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:55:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:55:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:55:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:55:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:55:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:55:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:55:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:55:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:55:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:55:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:55:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:55:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:55:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:55:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:55:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:55:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:29,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:29,153 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:29,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454812190] [2022-02-15 03:55:29,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1454812190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:29,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:29,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-15 03:55:29,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945591814] [2022-02-15 03:55:29,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:29,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-15 03:55:29,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:29,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-15 03:55:29,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1978, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 03:55:29,156 INFO L87 Difference]: Start difference. First operand 199 states and 200 transitions. Second operand has 46 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 44 states have internal predecessors, (105), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:55:32,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:32,047 INFO L93 Difference]: Finished difference Result 212 states and 213 transitions. [2022-02-15 03:55:32,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-15 03:55:32,047 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 44 states have internal predecessors, (105), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 196 [2022-02-15 03:55:32,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:32,048 INFO L225 Difference]: With dead ends: 212 [2022-02-15 03:55:32,048 INFO L226 Difference]: Without dead ends: 210 [2022-02-15 03:55:32,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=317, Invalid=7693, Unknown=0, NotChecked=0, Total=8010 [2022-02-15 03:55:32,050 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 120 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 6234 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 6358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 6234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:32,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 249 Invalid, 6358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 6234 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-15 03:55:32,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-15 03:55:32,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2022-02-15 03:55:32,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 163 states have (on average 1.0122699386503067) internal successors, (165), 164 states have internal predecessors, (165), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:55:32,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 208 transitions. [2022-02-15 03:55:32,144 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 208 transitions. Word has length 196 [2022-02-15 03:55:32,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:32,144 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 208 transitions. [2022-02-15 03:55:32,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 44 states have internal predecessors, (105), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:55:32,145 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 208 transitions. [2022-02-15 03:55:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-15 03:55:32,146 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:32,146 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:32,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 03:55:32,146 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:32,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:32,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2001753654, now seen corresponding path program 37 times [2022-02-15 03:55:32,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:32,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227362578] [2022-02-15 03:55:32,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:32,148 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:32,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:32,149 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-15 03:55:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:55:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:55:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:55:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:55:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:55:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:55:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:55:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:55:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:55:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:55:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:55:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:55:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:55:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:55:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:55:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:55:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:55:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:55:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:32,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:32,830 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:32,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227362578] [2022-02-15 03:55:32,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [227362578] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:32,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:32,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-15 03:55:32,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804687179] [2022-02-15 03:55:32,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:32,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-15 03:55:32,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:32,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-15 03:55:32,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1445, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 03:55:32,832 INFO L87 Difference]: Start difference. First operand 207 states and 208 transitions. Second operand has 44 states, 44 states have (on average 2.4545454545454546) internal successors, (108), 43 states have internal predecessors, (108), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:55:33,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:33,934 INFO L93 Difference]: Finished difference Result 298 states and 319 transitions. [2022-02-15 03:55:33,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 03:55:33,934 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.4545454545454546) internal successors, (108), 43 states have internal predecessors, (108), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 204 [2022-02-15 03:55:33,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:33,935 INFO L225 Difference]: With dead ends: 298 [2022-02-15 03:55:33,935 INFO L226 Difference]: Without dead ends: 210 [2022-02-15 03:55:33,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1415, Invalid=5725, Unknown=0, NotChecked=0, Total=7140 [2022-02-15 03:55:33,936 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 70 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:33,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 108 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:55:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-15 03:55:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2022-02-15 03:55:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 165 states have (on average 1.0121212121212122) internal successors, (167), 166 states have internal predecessors, (167), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:55:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 210 transitions. [2022-02-15 03:55:33,972 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 210 transitions. Word has length 204 [2022-02-15 03:55:33,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:33,972 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 210 transitions. [2022-02-15 03:55:33,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.4545454545454546) internal successors, (108), 43 states have internal predecessors, (108), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:55:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 210 transitions. [2022-02-15 03:55:33,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-02-15 03:55:33,974 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:33,974 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:33,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 03:55:33,974 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:33,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:33,974 INFO L85 PathProgramCache]: Analyzing trace with hash -731938156, now seen corresponding path program 38 times [2022-02-15 03:55:33,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:33,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190613814] [2022-02-15 03:55:33,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:33,976 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:33,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:33,977 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-15 03:55:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:55:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:55:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:55:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:55:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:55:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:55:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:55:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:55:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:55:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:55:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:55:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:55:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:55:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:55:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:55:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:55:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:55:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:55:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:34,801 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:34,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190613814] [2022-02-15 03:55:34,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [190613814] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:34,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:34,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-15 03:55:34,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087460964] [2022-02-15 03:55:34,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:34,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-15 03:55:34,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:34,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-15 03:55:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=2160, Unknown=0, NotChecked=0, Total=2256 [2022-02-15 03:55:34,803 INFO L87 Difference]: Start difference. First operand 209 states and 210 transitions. Second operand has 48 states, 47 states have (on average 2.3404255319148937) internal successors, (110), 46 states have internal predecessors, (110), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:55:37,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:37,311 INFO L93 Difference]: Finished difference Result 222 states and 223 transitions. [2022-02-15 03:55:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-15 03:55:37,312 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.3404255319148937) internal successors, (110), 46 states have internal predecessors, (110), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 206 [2022-02-15 03:55:37,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:37,314 INFO L225 Difference]: With dead ends: 222 [2022-02-15 03:55:37,314 INFO L226 Difference]: Without dead ends: 220 [2022-02-15 03:55:37,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=331, Invalid=8411, Unknown=0, NotChecked=0, Total=8742 [2022-02-15 03:55:37,317 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 125 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 6616 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 6746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 6616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:37,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 252 Invalid, 6746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 6616 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-15 03:55:37,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-15 03:55:37,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2022-02-15 03:55:37,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 171 states have (on average 1.0116959064327486) internal successors, (173), 172 states have internal predecessors, (173), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:55:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 218 transitions. [2022-02-15 03:55:37,364 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 218 transitions. Word has length 206 [2022-02-15 03:55:37,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:37,364 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 218 transitions. [2022-02-15 03:55:37,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.3404255319148937) internal successors, (110), 46 states have internal predecessors, (110), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:55:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 218 transitions. [2022-02-15 03:55:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-15 03:55:37,365 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:37,365 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:37,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 03:55:37,366 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:37,366 INFO L85 PathProgramCache]: Analyzing trace with hash -239463314, now seen corresponding path program 39 times [2022-02-15 03:55:37,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:37,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742135194] [2022-02-15 03:55:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:37,367 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:37,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:37,368 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-15 03:55:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:55:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:55:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:55:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:55:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:55:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:55:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:55:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:55:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:55:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:55:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:55:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:55:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:55:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:55:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:55:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:55:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:55:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:55:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:55:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:37,976 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:37,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742135194] [2022-02-15 03:55:37,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1742135194] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:37,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:37,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-15 03:55:37,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681210357] [2022-02-15 03:55:37,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:37,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-15 03:55:37,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:37,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-15 03:55:37,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 03:55:37,979 INFO L87 Difference]: Start difference. First operand 217 states and 218 transitions. Second operand has 46 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 45 states have internal predecessors, (113), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:55:38,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:38,915 INFO L93 Difference]: Finished difference Result 312 states and 334 transitions. [2022-02-15 03:55:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 03:55:38,915 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 45 states have internal predecessors, (113), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 214 [2022-02-15 03:55:38,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:38,916 INFO L225 Difference]: With dead ends: 312 [2022-02-15 03:55:38,916 INFO L226 Difference]: Without dead ends: 220 [2022-02-15 03:55:38,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1799 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1548, Invalid=6284, Unknown=0, NotChecked=0, Total=7832 [2022-02-15 03:55:38,917 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 72 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:38,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 80 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 03:55:38,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-15 03:55:38,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 219. [2022-02-15 03:55:38,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 173 states have (on average 1.0115606936416186) internal successors, (175), 174 states have internal predecessors, (175), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:55:38,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2022-02-15 03:55:38,955 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 214 [2022-02-15 03:55:38,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:38,955 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2022-02-15 03:55:38,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 45 states have internal predecessors, (113), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:55:38,955 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2022-02-15 03:55:38,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-02-15 03:55:38,956 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:38,956 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:38,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 03:55:38,956 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:38,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:38,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2101615796, now seen corresponding path program 40 times [2022-02-15 03:55:38,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:38,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101358475] [2022-02-15 03:55:38,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:38,958 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:38,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:38,959 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:55:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:55:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:55:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:55:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:55:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:55:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:55:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:55:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:55:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:55:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:55:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:55:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:55:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:55:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:55:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:40,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:55:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:55:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:55:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:40,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:55:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:55:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:40,014 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:40,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101358475] [2022-02-15 03:55:40,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2101358475] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:40,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:40,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-15 03:55:40,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371408556] [2022-02-15 03:55:40,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:40,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-15 03:55:40,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:40,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-15 03:55:40,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=2350, Unknown=0, NotChecked=0, Total=2450 [2022-02-15 03:55:40,016 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand has 50 states, 49 states have (on average 2.3469387755102042) internal successors, (115), 48 states have internal predecessors, (115), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:55:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:43,199 INFO L93 Difference]: Finished difference Result 232 states and 233 transitions. [2022-02-15 03:55:43,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-15 03:55:43,199 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.3469387755102042) internal successors, (115), 48 states have internal predecessors, (115), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 216 [2022-02-15 03:55:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:43,200 INFO L225 Difference]: With dead ends: 232 [2022-02-15 03:55:43,200 INFO L226 Difference]: Without dead ends: 230 [2022-02-15 03:55:43,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=345, Invalid=9161, Unknown=0, NotChecked=0, Total=9506 [2022-02-15 03:55:43,201 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 130 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 7239 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 7375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 7239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:43,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 263 Invalid, 7375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 7239 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-15 03:55:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-02-15 03:55:43,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2022-02-15 03:55:43,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 179 states have (on average 1.011173184357542) internal successors, (181), 180 states have internal predecessors, (181), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:55:43,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 228 transitions. [2022-02-15 03:55:43,260 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 228 transitions. Word has length 216 [2022-02-15 03:55:43,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:43,260 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 228 transitions. [2022-02-15 03:55:43,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.3469387755102042) internal successors, (115), 48 states have internal predecessors, (115), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:55:43,261 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 228 transitions. [2022-02-15 03:55:43,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-15 03:55:43,261 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:43,261 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:43,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 03:55:43,262 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:43,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:43,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1092207322, now seen corresponding path program 41 times [2022-02-15 03:55:43,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:43,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138644268] [2022-02-15 03:55:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:43,263 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:43,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:43,264 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-15 03:55:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:55:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:55:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:55:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:55:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:55:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:55:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:55:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:55:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:55:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:55:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:55:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:55:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:55:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:55:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:55:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:55:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:55:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:55:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:55:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:55:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:43,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:43,911 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:43,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138644268] [2022-02-15 03:55:43,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2138644268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:43,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:43,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-15 03:55:43,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058563814] [2022-02-15 03:55:43,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:43,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-15 03:55:43,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:43,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-15 03:55:43,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=1721, Unknown=0, NotChecked=0, Total=2256 [2022-02-15 03:55:43,913 INFO L87 Difference]: Start difference. First operand 227 states and 228 transitions. Second operand has 48 states, 48 states have (on average 2.4583333333333335) internal successors, (118), 47 states have internal predecessors, (118), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:55:45,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:45,155 INFO L93 Difference]: Finished difference Result 326 states and 349 transitions. [2022-02-15 03:55:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-15 03:55:45,155 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.4583333333333335) internal successors, (118), 47 states have internal predecessors, (118), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 224 [2022-02-15 03:55:45,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:45,156 INFO L225 Difference]: With dead ends: 326 [2022-02-15 03:55:45,156 INFO L226 Difference]: Without dead ends: 230 [2022-02-15 03:55:45,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1973 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1687, Invalid=6869, Unknown=0, NotChecked=0, Total=8556 [2022-02-15 03:55:45,157 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 74 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:45,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 107 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:55:45,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-02-15 03:55:45,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2022-02-15 03:55:45,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.011049723756906) internal successors, (183), 182 states have internal predecessors, (183), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:55:45,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 230 transitions. [2022-02-15 03:55:45,232 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 230 transitions. Word has length 224 [2022-02-15 03:55:45,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:45,234 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 230 transitions. [2022-02-15 03:55:45,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.4583333333333335) internal successors, (118), 47 states have internal predecessors, (118), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:55:45,234 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 230 transitions. [2022-02-15 03:55:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-02-15 03:55:45,235 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:45,235 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:45,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 03:55:45,236 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:45,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:45,236 INFO L85 PathProgramCache]: Analyzing trace with hash -388919676, now seen corresponding path program 42 times [2022-02-15 03:55:45,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:45,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816738479] [2022-02-15 03:55:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:45,238 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:45,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:45,239 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:55:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:55:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:55:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:55:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:55:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:55:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:55:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:55:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:55:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:55:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:55:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:55:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:55:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:55:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:55:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:55:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:55:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:55:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:55:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:55:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:55:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:46,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:46,348 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:46,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816738479] [2022-02-15 03:55:46,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1816738479] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:46,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:46,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-15 03:55:46,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179948016] [2022-02-15 03:55:46,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:46,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-15 03:55:46,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:46,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-15 03:55:46,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=2548, Unknown=0, NotChecked=0, Total=2652 [2022-02-15 03:55:46,350 INFO L87 Difference]: Start difference. First operand 229 states and 230 transitions. Second operand has 52 states, 51 states have (on average 2.3529411764705883) internal successors, (120), 50 states have internal predecessors, (120), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:55:49,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:49,220 INFO L93 Difference]: Finished difference Result 242 states and 243 transitions. [2022-02-15 03:55:49,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-15 03:55:49,221 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.3529411764705883) internal successors, (120), 50 states have internal predecessors, (120), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 226 [2022-02-15 03:55:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:49,222 INFO L225 Difference]: With dead ends: 242 [2022-02-15 03:55:49,222 INFO L226 Difference]: Without dead ends: 240 [2022-02-15 03:55:49,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1349 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=359, Invalid=9943, Unknown=0, NotChecked=0, Total=10302 [2022-02-15 03:55:49,224 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 135 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 7890 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 8032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 7890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:49,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 274 Invalid, 8032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 7890 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-15 03:55:49,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-02-15 03:55:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 237. [2022-02-15 03:55:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 187 states have (on average 1.0106951871657754) internal successors, (189), 188 states have internal predecessors, (189), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:55:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 238 transitions. [2022-02-15 03:55:49,288 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 238 transitions. Word has length 226 [2022-02-15 03:55:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:49,289 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 238 transitions. [2022-02-15 03:55:49,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.3529411764705883) internal successors, (120), 50 states have internal predecessors, (120), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:55:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 238 transitions. [2022-02-15 03:55:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-02-15 03:55:49,290 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:49,290 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:49,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 03:55:49,291 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:49,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:49,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1696149598, now seen corresponding path program 43 times [2022-02-15 03:55:49,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:49,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998048217] [2022-02-15 03:55:49,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:49,292 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:49,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:49,294 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-15 03:55:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:55:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:55:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:55:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:55:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:55:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:55:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:55:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:55:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:55:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:55:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:55:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:55:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:55:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:55:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:55:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:55:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:55:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:55:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:55:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:55:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:55:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:49,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:49,897 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:49,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998048217] [2022-02-15 03:55:49,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [998048217] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:49,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:49,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-15 03:55:49,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197872679] [2022-02-15 03:55:49,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:49,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-15 03:55:49,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:49,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-15 03:55:49,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=582, Invalid=1868, Unknown=0, NotChecked=0, Total=2450 [2022-02-15 03:55:49,900 INFO L87 Difference]: Start difference. First operand 237 states and 238 transitions. Second operand has 50 states, 50 states have (on average 2.46) internal successors, (123), 49 states have internal predecessors, (123), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:55:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:51,390 INFO L93 Difference]: Finished difference Result 340 states and 364 transitions. [2022-02-15 03:55:51,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 03:55:51,391 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.46) internal successors, (123), 49 states have internal predecessors, (123), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 234 [2022-02-15 03:55:51,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:51,392 INFO L225 Difference]: With dead ends: 340 [2022-02-15 03:55:51,392 INFO L226 Difference]: Without dead ends: 240 [2022-02-15 03:55:51,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1832, Invalid=7480, Unknown=0, NotChecked=0, Total=9312 [2022-02-15 03:55:51,394 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 76 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:51,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 99 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:55:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-02-15 03:55:51,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2022-02-15 03:55:51,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 189 states have (on average 1.0105820105820107) internal successors, (191), 190 states have internal predecessors, (191), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:55:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 240 transitions. [2022-02-15 03:55:51,443 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 240 transitions. Word has length 234 [2022-02-15 03:55:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:51,443 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 240 transitions. [2022-02-15 03:55:51,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.46) internal successors, (123), 49 states have internal predecessors, (123), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:55:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 240 transitions. [2022-02-15 03:55:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-15 03:55:51,445 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:51,445 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:51,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 03:55:51,445 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:51,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:51,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1842144316, now seen corresponding path program 44 times [2022-02-15 03:55:51,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:51,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118342642] [2022-02-15 03:55:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:51,447 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:51,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:51,449 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:55:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:55:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:55:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:55:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:55:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:55:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:55:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:55:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:55:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:55:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:55:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:55:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:55:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:55:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:55:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:55:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:55:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:55:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:55:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:55:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:55:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:55:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:52,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:52,705 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:52,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118342642] [2022-02-15 03:55:52,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [118342642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:52,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:52,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-15 03:55:52,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923039241] [2022-02-15 03:55:52,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:52,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-15 03:55:52,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:52,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-15 03:55:52,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=2754, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 03:55:52,706 INFO L87 Difference]: Start difference. First operand 239 states and 240 transitions. Second operand has 54 states, 53 states have (on average 2.358490566037736) internal successors, (125), 52 states have internal predecessors, (125), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:55:56,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:56,208 INFO L93 Difference]: Finished difference Result 252 states and 253 transitions. [2022-02-15 03:55:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-15 03:55:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 2.358490566037736) internal successors, (125), 52 states have internal predecessors, (125), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 236 [2022-02-15 03:55:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:56,210 INFO L225 Difference]: With dead ends: 252 [2022-02-15 03:55:56,210 INFO L226 Difference]: Without dead ends: 250 [2022-02-15 03:55:56,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1455 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=373, Invalid=10757, Unknown=0, NotChecked=0, Total=11130 [2022-02-15 03:55:56,212 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 140 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 8569 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 8717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 8569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:56,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 285 Invalid, 8717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 8569 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:55:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-15 03:55:56,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2022-02-15 03:55:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 196 states have internal predecessors, (197), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:55:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2022-02-15 03:55:56,258 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 236 [2022-02-15 03:55:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:56,258 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2022-02-15 03:55:56,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 2.358490566037736) internal successors, (125), 52 states have internal predecessors, (125), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:55:56,258 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2022-02-15 03:55:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-02-15 03:55:56,259 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:56,259 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:56,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 03:55:56,260 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:56,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:56,260 INFO L85 PathProgramCache]: Analyzing trace with hash 153046550, now seen corresponding path program 45 times [2022-02-15 03:55:56,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:56,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810284276] [2022-02-15 03:55:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:56,261 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:56,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:56,262 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-15 03:55:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:55:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:55:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:55:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:55:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:55:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:55:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:55:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:55:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:55:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:55:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:55:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:55:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:55:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:55:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:55:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:55:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:55:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:55:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:55:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:55:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:55:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:55:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:57,057 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:57,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810284276] [2022-02-15 03:55:57,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [810284276] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:57,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:57,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-15 03:55:57,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549614062] [2022-02-15 03:55:57,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:57,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-15 03:55:57,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:57,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-15 03:55:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=631, Invalid=2021, Unknown=0, NotChecked=0, Total=2652 [2022-02-15 03:55:57,059 INFO L87 Difference]: Start difference. First operand 247 states and 248 transitions. Second operand has 52 states, 52 states have (on average 2.4615384615384617) internal successors, (128), 51 states have internal predecessors, (128), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:55:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:58,275 INFO L93 Difference]: Finished difference Result 354 states and 379 transitions. [2022-02-15 03:55:58,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-15 03:55:58,276 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.4615384615384617) internal successors, (128), 51 states have internal predecessors, (128), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 244 [2022-02-15 03:55:58,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:58,277 INFO L225 Difference]: With dead ends: 354 [2022-02-15 03:55:58,277 INFO L226 Difference]: Without dead ends: 250 [2022-02-15 03:55:58,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2345 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1983, Invalid=8117, Unknown=0, NotChecked=0, Total=10100 [2022-02-15 03:55:58,278 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 78 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:58,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 96 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:55:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-15 03:55:58,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2022-02-15 03:55:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 197 states have (on average 1.0101522842639594) internal successors, (199), 198 states have internal predecessors, (199), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:55:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2022-02-15 03:55:58,337 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 244 [2022-02-15 03:55:58,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:58,337 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2022-02-15 03:55:58,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.4615384615384617) internal successors, (128), 51 states have internal predecessors, (128), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:55:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2022-02-15 03:55:58,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-02-15 03:55:58,338 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:58,339 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:58,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 03:55:58,339 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:58,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:58,339 INFO L85 PathProgramCache]: Analyzing trace with hash 358761588, now seen corresponding path program 46 times [2022-02-15 03:55:58,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:58,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454296298] [2022-02-15 03:55:58,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:58,340 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:58,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:58,342 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:55:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:55:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:55:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:55:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:55:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:55:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:55:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:55:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:55:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:55:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:55:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:55:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:55:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:55:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:55:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:55:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:55:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:55:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:55:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:55:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:55:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:55:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:55:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:55:59,517 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:59,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454296298] [2022-02-15 03:55:59,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1454296298] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:59,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:59,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-15 03:55:59,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173153415] [2022-02-15 03:55:59,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:59,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-15 03:55:59,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:59,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-15 03:55:59,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=2968, Unknown=0, NotChecked=0, Total=3080 [2022-02-15 03:55:59,519 INFO L87 Difference]: Start difference. First operand 249 states and 250 transitions. Second operand has 56 states, 55 states have (on average 2.3636363636363638) internal successors, (130), 54 states have internal predecessors, (130), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:56:03,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:03,389 INFO L93 Difference]: Finished difference Result 262 states and 263 transitions. [2022-02-15 03:56:03,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-15 03:56:03,389 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 2.3636363636363638) internal successors, (130), 54 states have internal predecessors, (130), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 246 [2022-02-15 03:56:03,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:03,390 INFO L225 Difference]: With dead ends: 262 [2022-02-15 03:56:03,390 INFO L226 Difference]: Without dead ends: 260 [2022-02-15 03:56:03,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=387, Invalid=11603, Unknown=0, NotChecked=0, Total=11990 [2022-02-15 03:56:03,391 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 145 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 9276 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 9430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 9276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:03,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 296 Invalid, 9430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 9276 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 03:56:03,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-02-15 03:56:03,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2022-02-15 03:56:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 203 states have (on average 1.0098522167487685) internal successors, (205), 204 states have internal predecessors, (205), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:56:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 258 transitions. [2022-02-15 03:56:03,459 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 258 transitions. Word has length 246 [2022-02-15 03:56:03,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:03,460 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 258 transitions. [2022-02-15 03:56:03,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 2.3636363636363638) internal successors, (130), 54 states have internal predecessors, (130), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:56:03,461 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 258 transitions. [2022-02-15 03:56:03,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-02-15 03:56:03,462 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:03,462 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:03,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 03:56:03,462 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:03,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1682765390, now seen corresponding path program 47 times [2022-02-15 03:56:03,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:03,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139944985] [2022-02-15 03:56:03,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:03,463 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:03,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:03,465 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-15 03:56:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:56:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:56:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:56:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:56:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:56:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:56:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:56:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:56:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:56:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:56:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:56:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:56:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:56:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:56:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:56:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:56:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:56:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:56:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:56:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:56:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:56:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:56:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:56:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:04,308 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:04,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139944985] [2022-02-15 03:56:04,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [139944985] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:04,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:04,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-15 03:56:04,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889331941] [2022-02-15 03:56:04,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:04,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-15 03:56:04,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:04,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-15 03:56:04,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=682, Invalid=2180, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 03:56:04,310 INFO L87 Difference]: Start difference. First operand 257 states and 258 transitions. Second operand has 54 states, 54 states have (on average 2.462962962962963) internal successors, (133), 53 states have internal predecessors, (133), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:56:05,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:05,608 INFO L93 Difference]: Finished difference Result 368 states and 394 transitions. [2022-02-15 03:56:05,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-15 03:56:05,609 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 2.462962962962963) internal successors, (133), 53 states have internal predecessors, (133), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 254 [2022-02-15 03:56:05,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:05,610 INFO L225 Difference]: With dead ends: 368 [2022-02-15 03:56:05,610 INFO L226 Difference]: Without dead ends: 260 [2022-02-15 03:56:05,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2543 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2140, Invalid=8780, Unknown=0, NotChecked=0, Total=10920 [2022-02-15 03:56:05,612 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 80 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:05,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 118 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:56:05,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-02-15 03:56:05,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 259. [2022-02-15 03:56:05,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 205 states have (on average 1.0097560975609756) internal successors, (207), 206 states have internal predecessors, (207), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:56:05,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 260 transitions. [2022-02-15 03:56:05,717 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 260 transitions. Word has length 254 [2022-02-15 03:56:05,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:05,718 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 260 transitions. [2022-02-15 03:56:05,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.462962962962963) internal successors, (133), 53 states have internal predecessors, (133), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:56:05,718 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 260 transitions. [2022-02-15 03:56:05,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-02-15 03:56:05,719 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:05,719 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:05,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 03:56:05,721 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:05,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:05,722 INFO L85 PathProgramCache]: Analyzing trace with hash -171045076, now seen corresponding path program 48 times [2022-02-15 03:56:05,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:05,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007134764] [2022-02-15 03:56:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:05,725 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:05,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:05,727 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:56:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:56:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:56:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:56:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:56:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:56:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:56:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:56:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:56:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:56:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:56:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:56:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:56:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:56:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:56:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:56:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:56:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:56:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:56:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:56:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:56:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:56:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:56:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:56:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:06,788 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:06,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007134764] [2022-02-15 03:56:06,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1007134764] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:06,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:06,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-15 03:56:06,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773113772] [2022-02-15 03:56:06,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:06,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-15 03:56:06,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:06,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-15 03:56:06,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=3190, Unknown=0, NotChecked=0, Total=3306 [2022-02-15 03:56:06,790 INFO L87 Difference]: Start difference. First operand 259 states and 260 transitions. Second operand has 58 states, 57 states have (on average 2.3684210526315788) internal successors, (135), 56 states have internal predecessors, (135), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:56:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:11,096 INFO L93 Difference]: Finished difference Result 272 states and 273 transitions. [2022-02-15 03:56:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-15 03:56:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 2.3684210526315788) internal successors, (135), 56 states have internal predecessors, (135), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 256 [2022-02-15 03:56:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:11,098 INFO L225 Difference]: With dead ends: 272 [2022-02-15 03:56:11,098 INFO L226 Difference]: Without dead ends: 270 [2022-02-15 03:56:11,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1679 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=401, Invalid=12481, Unknown=0, NotChecked=0, Total=12882 [2022-02-15 03:56:11,102 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 150 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 10096 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 10256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 10096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:11,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 311 Invalid, 10256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 10096 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-15 03:56:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-15 03:56:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 267. [2022-02-15 03:56:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 211 states have (on average 1.009478672985782) internal successors, (213), 212 states have internal predecessors, (213), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:56:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 268 transitions. [2022-02-15 03:56:11,165 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 268 transitions. Word has length 256 [2022-02-15 03:56:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:11,165 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 268 transitions. [2022-02-15 03:56:11,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 2.3684210526315788) internal successors, (135), 56 states have internal predecessors, (135), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:56:11,165 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 268 transitions. [2022-02-15 03:56:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-02-15 03:56:11,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:11,166 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:11,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 03:56:11,166 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:11,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash 981371142, now seen corresponding path program 49 times [2022-02-15 03:56:11,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:11,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729889410] [2022-02-15 03:56:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:11,168 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:11,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:11,170 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-15 03:56:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:56:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:56:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:56:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:56:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:56:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:56:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:56:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:56:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:56:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:56:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:56:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:56:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:56:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:56:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:56:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:56:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:56:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:56:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:56:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:56:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:56:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:56:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:56:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:56:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:11,928 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:11,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729889410] [2022-02-15 03:56:11,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [729889410] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:11,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:11,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-15 03:56:11,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665344802] [2022-02-15 03:56:11,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:11,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-15 03:56:11,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:11,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-15 03:56:11,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=735, Invalid=2345, Unknown=0, NotChecked=0, Total=3080 [2022-02-15 03:56:11,930 INFO L87 Difference]: Start difference. First operand 267 states and 268 transitions. Second operand has 56 states, 56 states have (on average 2.4642857142857144) internal successors, (138), 55 states have internal predecessors, (138), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:56:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:13,818 INFO L93 Difference]: Finished difference Result 382 states and 409 transitions. [2022-02-15 03:56:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-15 03:56:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 2.4642857142857144) internal successors, (138), 55 states have internal predecessors, (138), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 264 [2022-02-15 03:56:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:13,835 INFO L225 Difference]: With dead ends: 382 [2022-02-15 03:56:13,835 INFO L226 Difference]: Without dead ends: 270 [2022-02-15 03:56:13,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2749 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2303, Invalid=9469, Unknown=0, NotChecked=0, Total=11772 [2022-02-15 03:56:13,837 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 82 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:13,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 115 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-15 03:56:13,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-15 03:56:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 269. [2022-02-15 03:56:14,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 214 states have internal predecessors, (215), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:56:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 270 transitions. [2022-02-15 03:56:14,001 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 270 transitions. Word has length 264 [2022-02-15 03:56:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:14,001 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 270 transitions. [2022-02-15 03:56:14,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.4642857142857144) internal successors, (138), 55 states have internal predecessors, (138), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:56:14,002 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 270 transitions. [2022-02-15 03:56:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-02-15 03:56:14,004 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:14,004 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:14,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 03:56:14,004 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:14,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:14,004 INFO L85 PathProgramCache]: Analyzing trace with hash 768910436, now seen corresponding path program 50 times [2022-02-15 03:56:14,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:14,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766035166] [2022-02-15 03:56:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:14,006 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:14,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:14,009 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:56:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:56:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:56:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:56:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:56:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:56:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:56:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:56:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:56:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:56:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:56:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:56:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:56:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:56:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:56:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:56:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:56:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:56:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:56:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:56:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:56:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:56:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:56:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:56:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:56:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:15,558 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:15,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766035166] [2022-02-15 03:56:15,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [766035166] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:15,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:15,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-15 03:56:15,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010357072] [2022-02-15 03:56:15,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:15,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-15 03:56:15,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:15,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-15 03:56:15,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=3420, Unknown=0, NotChecked=0, Total=3540 [2022-02-15 03:56:15,561 INFO L87 Difference]: Start difference. First operand 269 states and 270 transitions. Second operand has 60 states, 59 states have (on average 2.3728813559322033) internal successors, (140), 58 states have internal predecessors, (140), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:56:20,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:20,413 INFO L93 Difference]: Finished difference Result 282 states and 283 transitions. [2022-02-15 03:56:20,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-15 03:56:20,414 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 2.3728813559322033) internal successors, (140), 58 states have internal predecessors, (140), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 266 [2022-02-15 03:56:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:20,415 INFO L225 Difference]: With dead ends: 282 [2022-02-15 03:56:20,415 INFO L226 Difference]: Without dead ends: 280 [2022-02-15 03:56:20,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1797 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=415, Invalid=13391, Unknown=0, NotChecked=0, Total=13806 [2022-02-15 03:56:20,417 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 155 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 10883 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 11049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 10883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:20,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 318 Invalid, 11049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 10883 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 03:56:20,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-15 03:56:20,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2022-02-15 03:56:20,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 219 states have (on average 1.0091324200913243) internal successors, (221), 220 states have internal predecessors, (221), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:56:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 278 transitions. [2022-02-15 03:56:20,507 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 278 transitions. Word has length 266 [2022-02-15 03:56:20,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:20,508 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 278 transitions. [2022-02-15 03:56:20,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 2.3728813559322033) internal successors, (140), 58 states have internal predecessors, (140), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:56:20,508 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 278 transitions. [2022-02-15 03:56:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-02-15 03:56:20,509 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:20,509 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:20,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 03:56:20,510 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:20,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:20,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1343776318, now seen corresponding path program 51 times [2022-02-15 03:56:20,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:20,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396130903] [2022-02-15 03:56:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:20,512 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:20,514 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-15 03:56:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:56:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:56:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:56:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:56:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:56:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:56:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:56:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:56:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:56:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:56:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:56:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:56:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:56:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:56:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:56:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:56:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:56:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:56:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:56:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:56:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:56:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:56:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:56:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:56:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:56:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:21,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:21,479 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:21,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396130903] [2022-02-15 03:56:21,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [396130903] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:21,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:21,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-15 03:56:21,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246229489] [2022-02-15 03:56:21,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:21,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-15 03:56:21,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:21,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-15 03:56:21,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=790, Invalid=2516, Unknown=0, NotChecked=0, Total=3306 [2022-02-15 03:56:21,480 INFO L87 Difference]: Start difference. First operand 277 states and 278 transitions. Second operand has 58 states, 58 states have (on average 2.4655172413793105) internal successors, (143), 57 states have internal predecessors, (143), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:56:22,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:22,831 INFO L93 Difference]: Finished difference Result 396 states and 424 transitions. [2022-02-15 03:56:22,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-15 03:56:22,831 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 2.4655172413793105) internal successors, (143), 57 states have internal predecessors, (143), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 274 [2022-02-15 03:56:22,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:22,833 INFO L225 Difference]: With dead ends: 396 [2022-02-15 03:56:22,833 INFO L226 Difference]: Without dead ends: 280 [2022-02-15 03:56:22,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2472, Invalid=10184, Unknown=0, NotChecked=0, Total=12656 [2022-02-15 03:56:22,834 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 84 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:22,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 97 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:56:22,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-15 03:56:22,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 279. [2022-02-15 03:56:22,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 221 states have (on average 1.009049773755656) internal successors, (223), 222 states have internal predecessors, (223), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:56:22,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 280 transitions. [2022-02-15 03:56:22,936 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 280 transitions. Word has length 274 [2022-02-15 03:56:22,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:22,936 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 280 transitions. [2022-02-15 03:56:22,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 2.4655172413793105) internal successors, (143), 57 states have internal predecessors, (143), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:56:22,937 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 280 transitions. [2022-02-15 03:56:22,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-02-15 03:56:22,938 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:22,938 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:22,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 03:56:22,938 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:22,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:22,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1522689052, now seen corresponding path program 52 times [2022-02-15 03:56:22,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:22,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111712086] [2022-02-15 03:56:22,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:22,940 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:22,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:22,941 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:56:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:56:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:56:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:56:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:56:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:56:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:56:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:56:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:56:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:56:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:56:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:56:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:56:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:56:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:56:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:56:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:56:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:56:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:56:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:56:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:56:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:56:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 03:56:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 03:56:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 03:56:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 03:56:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:24,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:24,611 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:24,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111712086] [2022-02-15 03:56:24,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2111712086] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:24,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:24,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-15 03:56:24,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490479142] [2022-02-15 03:56:24,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:24,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-15 03:56:24,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:24,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-15 03:56:24,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=3658, Unknown=0, NotChecked=0, Total=3782 [2022-02-15 03:56:24,613 INFO L87 Difference]: Start difference. First operand 279 states and 280 transitions. Second operand has 62 states, 61 states have (on average 2.377049180327869) internal successors, (145), 60 states have internal predecessors, (145), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:56:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:29,480 INFO L93 Difference]: Finished difference Result 292 states and 293 transitions. [2022-02-15 03:56:29,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-15 03:56:29,480 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.377049180327869) internal successors, (145), 60 states have internal predecessors, (145), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 276 [2022-02-15 03:56:29,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:29,482 INFO L225 Difference]: With dead ends: 292 [2022-02-15 03:56:29,482 INFO L226 Difference]: Without dead ends: 290 [2022-02-15 03:56:29,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1919 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=429, Invalid=14333, Unknown=0, NotChecked=0, Total=14762 [2022-02-15 03:56:29,484 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 160 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 11768 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 11768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:29,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 333 Invalid, 11940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 11768 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-15 03:56:29,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-02-15 03:56:29,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 287. [2022-02-15 03:56:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 227 states have (on average 1.0088105726872247) internal successors, (229), 228 states have internal predecessors, (229), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:56:29,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 288 transitions. [2022-02-15 03:56:29,576 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 288 transitions. Word has length 276 [2022-02-15 03:56:29,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:29,576 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 288 transitions. [2022-02-15 03:56:29,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.377049180327869) internal successors, (145), 60 states have internal predecessors, (145), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:56:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 288 transitions. [2022-02-15 03:56:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-02-15 03:56:29,578 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:29,578 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:29,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 03:56:29,578 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:29,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -536416778, now seen corresponding path program 53 times [2022-02-15 03:56:29,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:29,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140802987] [2022-02-15 03:56:29,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:29,580 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:29,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:29,582 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-15 03:56:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:56:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:56:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:56:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:56:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:56:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:56:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:56:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:56:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:56:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:56:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:56:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:56:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:56:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:56:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:56:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:56:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:56:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:56:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:56:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:56:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:56:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 03:56:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 03:56:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 03:56:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 03:56:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 03:56:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:30,773 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:30,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140802987] [2022-02-15 03:56:30,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2140802987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:30,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:30,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-15 03:56:30,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793077860] [2022-02-15 03:56:30,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:30,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-15 03:56:30,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:30,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-15 03:56:30,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=847, Invalid=2693, Unknown=0, NotChecked=0, Total=3540 [2022-02-15 03:56:30,775 INFO L87 Difference]: Start difference. First operand 287 states and 288 transitions. Second operand has 60 states, 60 states have (on average 2.466666666666667) internal successors, (148), 59 states have internal predecessors, (148), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:56:32,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:32,483 INFO L93 Difference]: Finished difference Result 410 states and 439 transitions. [2022-02-15 03:56:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-15 03:56:32,483 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 2.466666666666667) internal successors, (148), 59 states have internal predecessors, (148), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 284 [2022-02-15 03:56:32,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:32,485 INFO L225 Difference]: With dead ends: 410 [2022-02-15 03:56:32,485 INFO L226 Difference]: Without dead ends: 290 [2022-02-15 03:56:32,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3185 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2647, Invalid=10925, Unknown=0, NotChecked=0, Total=13572 [2022-02-15 03:56:32,487 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 86 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:32,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 99 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:56:32,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-02-15 03:56:32,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 289. [2022-02-15 03:56:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 229 states have (on average 1.0087336244541485) internal successors, (231), 230 states have internal predecessors, (231), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:56:32,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 290 transitions. [2022-02-15 03:56:32,572 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 290 transitions. Word has length 284 [2022-02-15 03:56:32,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:32,572 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 290 transitions. [2022-02-15 03:56:32,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 2.466666666666667) internal successors, (148), 59 states have internal predecessors, (148), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:56:32,572 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 290 transitions. [2022-02-15 03:56:32,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-02-15 03:56:32,573 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:32,574 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:32,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 03:56:32,574 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:32,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1905545644, now seen corresponding path program 54 times [2022-02-15 03:56:32,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:32,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678403176] [2022-02-15 03:56:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:32,576 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:32,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:32,578 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:56:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:56:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:56:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:56:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:56:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:56:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:56:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:56:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:56:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:56:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:56:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:56:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:56:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:56:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:56:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:56:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:56:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:56:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:56:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:56:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:56:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:56:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:56:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 03:56:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 03:56:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 03:56:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 03:56:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:34,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:34,494 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:34,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678403176] [2022-02-15 03:56:34,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1678403176] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:34,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:34,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-15 03:56:34,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017475864] [2022-02-15 03:56:34,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:34,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-15 03:56:34,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:34,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-15 03:56:34,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=3904, Unknown=0, NotChecked=0, Total=4032 [2022-02-15 03:56:34,496 INFO L87 Difference]: Start difference. First operand 289 states and 290 transitions. Second operand has 64 states, 63 states have (on average 2.380952380952381) internal successors, (150), 62 states have internal predecessors, (150), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:56:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:39,768 INFO L93 Difference]: Finished difference Result 302 states and 303 transitions. [2022-02-15 03:56:39,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-15 03:56:39,769 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 2.380952380952381) internal successors, (150), 62 states have internal predecessors, (150), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 286 [2022-02-15 03:56:39,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:39,770 INFO L225 Difference]: With dead ends: 302 [2022-02-15 03:56:39,770 INFO L226 Difference]: Without dead ends: 300 [2022-02-15 03:56:39,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2045 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=443, Invalid=15307, Unknown=0, NotChecked=0, Total=15750 [2022-02-15 03:56:39,772 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 12594 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 12772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 12594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:39,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 344 Invalid, 12772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 12594 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-15 03:56:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-15 03:56:39,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 297. [2022-02-15 03:56:39,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 235 states have (on average 1.0085106382978724) internal successors, (237), 236 states have internal predecessors, (237), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:56:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 298 transitions. [2022-02-15 03:56:39,847 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 298 transitions. Word has length 286 [2022-02-15 03:56:39,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:39,847 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 298 transitions. [2022-02-15 03:56:39,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 2.380952380952381) internal successors, (150), 62 states have internal predecessors, (150), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:56:39,848 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 298 transitions. [2022-02-15 03:56:39,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-02-15 03:56:39,849 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:39,849 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:39,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 03:56:39,849 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:39,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:39,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1849786322, now seen corresponding path program 55 times [2022-02-15 03:56:39,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:39,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918844451] [2022-02-15 03:56:39,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:39,850 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:39,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:39,852 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-15 03:56:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:56:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:56:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:56:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:56:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:56:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:56:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:56:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:56:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:56:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:56:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:56:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:56:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:56:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:56:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:56:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:56:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:56:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:56:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:56:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:56:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:56:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:56:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 03:56:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 03:56:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 03:56:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 03:56:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 03:56:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:40,695 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:40,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918844451] [2022-02-15 03:56:40,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1918844451] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:40,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:40,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-15 03:56:40,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845221312] [2022-02-15 03:56:40,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:40,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-15 03:56:40,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:40,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-15 03:56:40,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=906, Invalid=2876, Unknown=0, NotChecked=0, Total=3782 [2022-02-15 03:56:40,697 INFO L87 Difference]: Start difference. First operand 297 states and 298 transitions. Second operand has 62 states, 62 states have (on average 2.467741935483871) internal successors, (153), 61 states have internal predecessors, (153), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:56:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:42,425 INFO L93 Difference]: Finished difference Result 424 states and 454 transitions. [2022-02-15 03:56:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-15 03:56:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 2.467741935483871) internal successors, (153), 61 states have internal predecessors, (153), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 294 [2022-02-15 03:56:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:42,427 INFO L225 Difference]: With dead ends: 424 [2022-02-15 03:56:42,427 INFO L226 Difference]: Without dead ends: 300 [2022-02-15 03:56:42,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3415 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2828, Invalid=11692, Unknown=0, NotChecked=0, Total=14520 [2022-02-15 03:56:42,428 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 88 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:42,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 116 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:56:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-15 03:56:42,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2022-02-15 03:56:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 238 states have internal predecessors, (239), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:56:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 300 transitions. [2022-02-15 03:56:42,505 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 300 transitions. Word has length 294 [2022-02-15 03:56:42,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:42,505 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 300 transitions. [2022-02-15 03:56:42,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.467741935483871) internal successors, (153), 61 states have internal predecessors, (153), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:56:42,506 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 300 transitions. [2022-02-15 03:56:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-02-15 03:56:42,507 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:42,507 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:42,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 03:56:42,507 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:42,507 INFO L85 PathProgramCache]: Analyzing trace with hash -986914036, now seen corresponding path program 56 times [2022-02-15 03:56:42,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:42,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000227673] [2022-02-15 03:56:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:42,509 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:42,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:42,510 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:56:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:56:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:56:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:56:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:56:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:56:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:56:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:56:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:56:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:56:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:56:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:56:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:56:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:56:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:56:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:56:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:56:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:56:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:56:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:56:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:56:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:56:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:56:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:56:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 03:56:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 03:56:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 03:56:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 03:56:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:44,187 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:44,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000227673] [2022-02-15 03:56:44,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2000227673] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:44,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:44,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-15 03:56:44,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440325937] [2022-02-15 03:56:44,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:44,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-15 03:56:44,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:44,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-15 03:56:44,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=4158, Unknown=0, NotChecked=0, Total=4290 [2022-02-15 03:56:44,189 INFO L87 Difference]: Start difference. First operand 299 states and 300 transitions. Second operand has 66 states, 65 states have (on average 2.3846153846153846) internal successors, (155), 64 states have internal predecessors, (155), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:56:49,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:49,858 INFO L93 Difference]: Finished difference Result 312 states and 313 transitions. [2022-02-15 03:56:49,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-15 03:56:49,858 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 2.3846153846153846) internal successors, (155), 64 states have internal predecessors, (155), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 296 [2022-02-15 03:56:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:49,859 INFO L225 Difference]: With dead ends: 312 [2022-02-15 03:56:49,859 INFO L226 Difference]: Without dead ends: 310 [2022-02-15 03:56:49,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2175 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=457, Invalid=16313, Unknown=0, NotChecked=0, Total=16770 [2022-02-15 03:56:49,885 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 13327 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 13511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 13327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:49,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 355 Invalid, 13511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 13327 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 03:56:49,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-02-15 03:56:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 307. [2022-02-15 03:56:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 243 states have (on average 1.008230452674897) internal successors, (245), 244 states have internal predecessors, (245), 32 states have call successors, (32), 32 states have call predecessors, (32), 31 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:56:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 308 transitions. [2022-02-15 03:56:49,954 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 308 transitions. Word has length 296 [2022-02-15 03:56:49,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:49,954 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 308 transitions. [2022-02-15 03:56:49,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 2.3846153846153846) internal successors, (155), 64 states have internal predecessors, (155), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:56:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 308 transitions. [2022-02-15 03:56:49,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-02-15 03:56:49,956 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:49,956 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:49,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 03:56:49,956 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:49,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:49,956 INFO L85 PathProgramCache]: Analyzing trace with hash -281314074, now seen corresponding path program 57 times [2022-02-15 03:56:49,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:49,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094140850] [2022-02-15 03:56:49,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:49,958 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:49,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:49,959 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-15 03:56:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:56:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:56:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:56:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:56:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:56:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:56:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:56:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:56:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:56:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:56:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:56:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:56:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:56:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:56:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:56:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:56:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:56:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:56:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:56:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:56:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:56:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:56:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:56:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 03:56:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 03:56:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 03:56:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 03:56:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 03:56:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:51,105 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:51,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094140850] [2022-02-15 03:56:51,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1094140850] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:51,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:51,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-15 03:56:51,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117997553] [2022-02-15 03:56:51,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:51,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-15 03:56:51,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-15 03:56:51,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2022-02-15 03:56:51,107 INFO L87 Difference]: Start difference. First operand 307 states and 308 transitions. Second operand has 64 states, 64 states have (on average 2.46875) internal successors, (158), 63 states have internal predecessors, (158), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:56:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:52,889 INFO L93 Difference]: Finished difference Result 438 states and 469 transitions. [2022-02-15 03:56:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-15 03:56:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.46875) internal successors, (158), 63 states have internal predecessors, (158), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 304 [2022-02-15 03:56:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:52,891 INFO L225 Difference]: With dead ends: 438 [2022-02-15 03:56:52,891 INFO L226 Difference]: Without dead ends: 310 [2022-02-15 03:56:52,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3653 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3015, Invalid=12485, Unknown=0, NotChecked=0, Total=15500 [2022-02-15 03:56:52,893 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 90 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:52,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 133 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-15 03:56:52,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-02-15 03:56:52,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 309. [2022-02-15 03:56:52,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 245 states have (on average 1.0081632653061225) internal successors, (247), 246 states have internal predecessors, (247), 32 states have call successors, (32), 32 states have call predecessors, (32), 31 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:56:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 310 transitions. [2022-02-15 03:56:52,987 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 310 transitions. Word has length 304 [2022-02-15 03:56:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:52,987 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 310 transitions. [2022-02-15 03:56:52,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.46875) internal successors, (158), 63 states have internal predecessors, (158), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:56:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 310 transitions. [2022-02-15 03:56:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-02-15 03:56:52,988 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:52,988 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:52,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-15 03:56:52,989 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:52,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:52,989 INFO L85 PathProgramCache]: Analyzing trace with hash -605396412, now seen corresponding path program 58 times [2022-02-15 03:56:52,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:52,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800820337] [2022-02-15 03:56:52,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:52,990 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:52,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:52,997 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:56:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:56:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:56:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:56:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:56:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:56:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:56:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:56:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:56:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:56:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:56:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:56:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:56:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:56:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:56:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:56:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:56:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:56:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:56:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:56:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:56:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:56:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:56:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:56:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:56:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 03:56:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 03:56:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 03:56:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 03:56:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:54,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:56:54,874 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:54,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800820337] [2022-02-15 03:56:54,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1800820337] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:54,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:54,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-15 03:56:54,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556875842] [2022-02-15 03:56:54,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:54,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-15 03:56:54,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:54,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-15 03:56:54,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=4420, Unknown=0, NotChecked=0, Total=4556 [2022-02-15 03:56:54,884 INFO L87 Difference]: Start difference. First operand 309 states and 310 transitions. Second operand has 68 states, 67 states have (on average 2.388059701492537) internal successors, (160), 66 states have internal predecessors, (160), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:57:00,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:00,338 INFO L93 Difference]: Finished difference Result 322 states and 323 transitions. [2022-02-15 03:57:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-15 03:57:00,338 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 2.388059701492537) internal successors, (160), 66 states have internal predecessors, (160), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 306 [2022-02-15 03:57:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:00,339 INFO L225 Difference]: With dead ends: 322 [2022-02-15 03:57:00,339 INFO L226 Difference]: Without dead ends: 320 [2022-02-15 03:57:00,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2309 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=471, Invalid=17351, Unknown=0, NotChecked=0, Total=17822 [2022-02-15 03:57:00,354 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 14205 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 14395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 14205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:00,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 366 Invalid, 14395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 14205 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-15 03:57:00,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-15 03:57:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 317. [2022-02-15 03:57:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 251 states have (on average 1.0079681274900398) internal successors, (253), 252 states have internal predecessors, (253), 33 states have call successors, (33), 33 states have call predecessors, (33), 32 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:57:00,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 318 transitions. [2022-02-15 03:57:00,453 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 318 transitions. Word has length 306 [2022-02-15 03:57:00,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:00,454 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 318 transitions. [2022-02-15 03:57:00,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 2.388059701492537) internal successors, (160), 66 states have internal predecessors, (160), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:57:00,454 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 318 transitions. [2022-02-15 03:57:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-02-15 03:57:00,455 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:00,455 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:00,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 03:57:00,455 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:00,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1526875166, now seen corresponding path program 59 times [2022-02-15 03:57:00,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:00,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038275403] [2022-02-15 03:57:00,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:00,457 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:00,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:00,459 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-15 03:57:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:57:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:57:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:57:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:57:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:57:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:57:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:57:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:57:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:57:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:57:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:57:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:57:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:57:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:57:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:57:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:57:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:57:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:57:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:57:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:57:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:57:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:57:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:57:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:57:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 03:57:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 03:57:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 03:57:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 03:57:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 03:57:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:01,318 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:01,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038275403] [2022-02-15 03:57:01,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1038275403] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:01,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:01,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-15 03:57:01,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820888636] [2022-02-15 03:57:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:01,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-15 03:57:01,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:01,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-15 03:57:01,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1030, Invalid=3260, Unknown=0, NotChecked=0, Total=4290 [2022-02-15 03:57:01,320 INFO L87 Difference]: Start difference. First operand 317 states and 318 transitions. Second operand has 66 states, 66 states have (on average 2.4696969696969697) internal successors, (163), 65 states have internal predecessors, (163), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:57:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:03,317 INFO L93 Difference]: Finished difference Result 452 states and 484 transitions. [2022-02-15 03:57:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-15 03:57:03,317 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.4696969696969697) internal successors, (163), 65 states have internal predecessors, (163), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 314 [2022-02-15 03:57:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:03,318 INFO L225 Difference]: With dead ends: 452 [2022-02-15 03:57:03,318 INFO L226 Difference]: Without dead ends: 320 [2022-02-15 03:57:03,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3899 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3208, Invalid=13304, Unknown=0, NotChecked=0, Total=16512 [2022-02-15 03:57:03,320 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 92 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:03,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 120 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:57:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-15 03:57:03,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 319. [2022-02-15 03:57:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 253 states have (on average 1.007905138339921) internal successors, (255), 254 states have internal predecessors, (255), 33 states have call successors, (33), 33 states have call predecessors, (33), 32 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:57:03,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 320 transitions. [2022-02-15 03:57:03,407 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 320 transitions. Word has length 314 [2022-02-15 03:57:03,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:03,407 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 320 transitions. [2022-02-15 03:57:03,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.4696969696969697) internal successors, (163), 65 states have internal predecessors, (163), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:57:03,407 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 320 transitions. [2022-02-15 03:57:03,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-02-15 03:57:03,408 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:03,409 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:03,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 03:57:03,409 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:03,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:03,409 INFO L85 PathProgramCache]: Analyzing trace with hash 101747708, now seen corresponding path program 60 times [2022-02-15 03:57:03,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:03,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506134478] [2022-02-15 03:57:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:03,410 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:03,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:03,412 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:57:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:57:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:57:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:57:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:57:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:57:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:57:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:57:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:57:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:57:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:57:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:57:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:57:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:57:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:57:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:57:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:57:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:57:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:57:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:57:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:57:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 03:57:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 03:57:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 03:57:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 03:57:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 03:57:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 03:57:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 03:57:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 03:57:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 03:57:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:05,220 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:05,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506134478] [2022-02-15 03:57:05,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1506134478] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:05,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:05,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-15 03:57:05,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839326371] [2022-02-15 03:57:05,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:05,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-15 03:57:05,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:05,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-15 03:57:05,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=4690, Unknown=0, NotChecked=0, Total=4830 [2022-02-15 03:57:05,222 INFO L87 Difference]: Start difference. First operand 319 states and 320 transitions. Second operand has 70 states, 69 states have (on average 2.391304347826087) internal successors, (165), 68 states have internal predecessors, (165), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:57:11,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:11,244 INFO L93 Difference]: Finished difference Result 332 states and 333 transitions. [2022-02-15 03:57:11,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-15 03:57:11,246 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 2.391304347826087) internal successors, (165), 68 states have internal predecessors, (165), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 316 [2022-02-15 03:57:11,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:11,247 INFO L225 Difference]: With dead ends: 332 [2022-02-15 03:57:11,247 INFO L226 Difference]: Without dead ends: 330 [2022-02-15 03:57:11,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2447 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=485, Invalid=18421, Unknown=0, NotChecked=0, Total=18906 [2022-02-15 03:57:11,249 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 180 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 15009 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 15205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 15009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:11,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 373 Invalid, 15205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 15009 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 03:57:11,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-15 03:57:11,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 327. [2022-02-15 03:57:11,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 259 states have (on average 1.0077220077220077) internal successors, (261), 260 states have internal predecessors, (261), 34 states have call successors, (34), 34 states have call predecessors, (34), 33 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:57:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 328 transitions. [2022-02-15 03:57:11,340 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 328 transitions. Word has length 316 [2022-02-15 03:57:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:11,341 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 328 transitions. [2022-02-15 03:57:11,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 2.391304347826087) internal successors, (165), 68 states have internal predecessors, (165), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:57:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 328 transitions. [2022-02-15 03:57:11,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-02-15 03:57:11,342 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:11,342 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:11,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-15 03:57:11,343 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2044774954, now seen corresponding path program 61 times [2022-02-15 03:57:11,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:11,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888476526] [2022-02-15 03:57:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:11,344 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:11,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:11,346 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-15 03:57:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:57:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:57:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:57:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:57:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:57:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:57:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:57:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:57:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:57:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:57:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:57:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:57:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:57:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:57:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:57:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:57:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:57:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:57:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:57:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:57:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 03:57:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 03:57:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 03:57:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 03:57:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 03:57:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 03:57:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 03:57:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 03:57:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 03:57:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 03:57:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:12,320 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:12,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888476526] [2022-02-15 03:57:12,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1888476526] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:12,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:12,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-15 03:57:12,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051356755] [2022-02-15 03:57:12,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:12,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-15 03:57:12,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:12,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-15 03:57:12,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1095, Invalid=3461, Unknown=0, NotChecked=0, Total=4556 [2022-02-15 03:57:12,322 INFO L87 Difference]: Start difference. First operand 327 states and 328 transitions. Second operand has 68 states, 68 states have (on average 2.4705882352941178) internal successors, (168), 67 states have internal predecessors, (168), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:57:14,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:14,162 INFO L93 Difference]: Finished difference Result 466 states and 499 transitions. [2022-02-15 03:57:14,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-15 03:57:14,163 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.4705882352941178) internal successors, (168), 67 states have internal predecessors, (168), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Word has length 324 [2022-02-15 03:57:14,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:14,164 INFO L225 Difference]: With dead ends: 466 [2022-02-15 03:57:14,164 INFO L226 Difference]: Without dead ends: 330 [2022-02-15 03:57:14,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4153 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3407, Invalid=14149, Unknown=0, NotChecked=0, Total=17556 [2022-02-15 03:57:14,165 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 94 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:14,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 112 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:57:14,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-15 03:57:14,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 329. [2022-02-15 03:57:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 261 states have (on average 1.0076628352490422) internal successors, (263), 262 states have internal predecessors, (263), 34 states have call successors, (34), 34 states have call predecessors, (34), 33 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:57:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 330 transitions. [2022-02-15 03:57:14,268 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 330 transitions. Word has length 324 [2022-02-15 03:57:14,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:14,268 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 330 transitions. [2022-02-15 03:57:14,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 2.4705882352941178) internal successors, (168), 67 states have internal predecessors, (168), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:57:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 330 transitions. [2022-02-15 03:57:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-02-15 03:57:14,270 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:14,270 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:14,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 03:57:14,270 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1013727180, now seen corresponding path program 62 times [2022-02-15 03:57:14,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:14,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760632486] [2022-02-15 03:57:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:14,272 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:14,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:14,274 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:57:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:57:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:57:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:57:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:57:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:57:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:57:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:57:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:57:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:57:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:57:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:57:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:57:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:57:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:57:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:57:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:57:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:57:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:57:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:57:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:57:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:57:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 03:57:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 03:57:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 03:57:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 03:57:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 03:57:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 03:57:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 03:57:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 03:57:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 03:57:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:16,201 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:16,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760632486] [2022-02-15 03:57:16,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [760632486] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:16,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:16,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-15 03:57:16,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165729666] [2022-02-15 03:57:16,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:16,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-15 03:57:16,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:16,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-15 03:57:16,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=4968, Unknown=0, NotChecked=0, Total=5112 [2022-02-15 03:57:16,207 INFO L87 Difference]: Start difference. First operand 329 states and 330 transitions. Second operand has 72 states, 71 states have (on average 2.3943661971830985) internal successors, (170), 70 states have internal predecessors, (170), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:57:22,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:22,576 INFO L93 Difference]: Finished difference Result 342 states and 343 transitions. [2022-02-15 03:57:22,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-15 03:57:22,577 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 2.3943661971830985) internal successors, (170), 70 states have internal predecessors, (170), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Word has length 326 [2022-02-15 03:57:22,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:22,579 INFO L225 Difference]: With dead ends: 342 [2022-02-15 03:57:22,579 INFO L226 Difference]: Without dead ends: 340 [2022-02-15 03:57:22,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2589 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=499, Invalid=19523, Unknown=0, NotChecked=0, Total=20022 [2022-02-15 03:57:22,581 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 185 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 15941 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 16143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 15941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:22,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 384 Invalid, 16143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 15941 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 03:57:22,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-02-15 03:57:22,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2022-02-15 03:57:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 267 states have (on average 1.0074906367041199) internal successors, (269), 268 states have internal predecessors, (269), 35 states have call successors, (35), 35 states have call predecessors, (35), 34 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:57:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 338 transitions. [2022-02-15 03:57:22,679 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 338 transitions. Word has length 326 [2022-02-15 03:57:22,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:22,679 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 338 transitions. [2022-02-15 03:57:22,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 2.3943661971830985) internal successors, (170), 70 states have internal predecessors, (170), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:57:22,679 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 338 transitions. [2022-02-15 03:57:22,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-02-15 03:57:22,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:22,681 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:22,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-15 03:57:22,681 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:22,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:22,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1713811982, now seen corresponding path program 63 times [2022-02-15 03:57:22,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:22,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135601672] [2022-02-15 03:57:22,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:22,683 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:22,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:22,684 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-15 03:57:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:57:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:57:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:57:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:57:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:57:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:57:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:57:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:57:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:57:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:57:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:57:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:57:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:57:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:57:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:57:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:57:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:57:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:57:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:57:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:57:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:57:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 03:57:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 03:57:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 03:57:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 03:57:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 03:57:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 03:57:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 03:57:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 03:57:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 03:57:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 03:57:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:23,648 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:23,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135601672] [2022-02-15 03:57:23,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1135601672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:23,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:23,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-15 03:57:23,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600489680] [2022-02-15 03:57:23,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:23,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-15 03:57:23,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:23,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-15 03:57:23,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1162, Invalid=3668, Unknown=0, NotChecked=0, Total=4830 [2022-02-15 03:57:23,659 INFO L87 Difference]: Start difference. First operand 337 states and 338 transitions. Second operand has 70 states, 70 states have (on average 2.4714285714285715) internal successors, (173), 69 states have internal predecessors, (173), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:57:25,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:25,978 INFO L93 Difference]: Finished difference Result 480 states and 514 transitions. [2022-02-15 03:57:25,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-15 03:57:25,978 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 2.4714285714285715) internal successors, (173), 69 states have internal predecessors, (173), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 334 [2022-02-15 03:57:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:25,980 INFO L225 Difference]: With dead ends: 480 [2022-02-15 03:57:25,980 INFO L226 Difference]: Without dead ends: 340 [2022-02-15 03:57:25,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4415 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3612, Invalid=15020, Unknown=0, NotChecked=0, Total=18632 [2022-02-15 03:57:25,982 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 96 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:25,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 134 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 03:57:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-02-15 03:57:26,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 339. [2022-02-15 03:57:26,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 269 states have (on average 1.0074349442379182) internal successors, (271), 270 states have internal predecessors, (271), 35 states have call successors, (35), 35 states have call predecessors, (35), 34 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:57:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 340 transitions. [2022-02-15 03:57:26,075 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 340 transitions. Word has length 334 [2022-02-15 03:57:26,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:26,075 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 340 transitions. [2022-02-15 03:57:26,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.4714285714285715) internal successors, (173), 69 states have internal predecessors, (173), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:57:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 340 transitions. [2022-02-15 03:57:26,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-02-15 03:57:26,077 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:26,077 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:26,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-15 03:57:26,077 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:26,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:26,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1458593516, now seen corresponding path program 64 times [2022-02-15 03:57:26,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:26,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004430842] [2022-02-15 03:57:26,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:26,079 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:26,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:26,081 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:57:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:57:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:57:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:57:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:57:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:57:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:57:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:57:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:57:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:57:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:57:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:57:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:57:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:57:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:57:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:57:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:57:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:57:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:57:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:57:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:57:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:57:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:57:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 03:57:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 03:57:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 03:57:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 03:57:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 03:57:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 03:57:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 03:57:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 03:57:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 03:57:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:28,279 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:28,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004430842] [2022-02-15 03:57:28,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1004430842] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:28,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:28,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-15 03:57:28,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746877893] [2022-02-15 03:57:28,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:28,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-15 03:57:28,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:28,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-15 03:57:28,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=5254, Unknown=0, NotChecked=0, Total=5402 [2022-02-15 03:57:28,281 INFO L87 Difference]: Start difference. First operand 339 states and 340 transitions. Second operand has 74 states, 73 states have (on average 2.3972602739726026) internal successors, (175), 72 states have internal predecessors, (175), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:57:34,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:34,507 INFO L93 Difference]: Finished difference Result 352 states and 353 transitions. [2022-02-15 03:57:34,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-15 03:57:34,507 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 73 states have (on average 2.3972602739726026) internal successors, (175), 72 states have internal predecessors, (175), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 336 [2022-02-15 03:57:34,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:34,508 INFO L225 Difference]: With dead ends: 352 [2022-02-15 03:57:34,508 INFO L226 Difference]: Without dead ends: 350 [2022-02-15 03:57:34,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2735 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=513, Invalid=20657, Unknown=0, NotChecked=0, Total=21170 [2022-02-15 03:57:34,511 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 190 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 16899 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 17107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 16899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:34,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 395 Invalid, 17107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 16899 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 03:57:34,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-02-15 03:57:34,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 347. [2022-02-15 03:57:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 275 states have (on average 1.0072727272727273) internal successors, (277), 276 states have internal predecessors, (277), 36 states have call successors, (36), 36 states have call predecessors, (36), 35 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:57:34,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 348 transitions. [2022-02-15 03:57:34,627 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 348 transitions. Word has length 336 [2022-02-15 03:57:34,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:34,627 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 348 transitions. [2022-02-15 03:57:34,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 73 states have (on average 2.3972602739726026) internal successors, (175), 72 states have internal predecessors, (175), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:57:34,628 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 348 transitions. [2022-02-15 03:57:34,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-02-15 03:57:34,629 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:34,629 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:34,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-15 03:57:34,629 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1422583610, now seen corresponding path program 65 times [2022-02-15 03:57:34,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:34,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118943196] [2022-02-15 03:57:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:34,632 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:34,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:34,634 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-15 03:57:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:57:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:57:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:57:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:57:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:57:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:57:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:57:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:57:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:57:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:57:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:57:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:57:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:57:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:57:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:57:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:57:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:57:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:57:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:57:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:57:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:57:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:57:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 03:57:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 03:57:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 03:57:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 03:57:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 03:57:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 03:57:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 03:57:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 03:57:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 03:57:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 03:57:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:35,999 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:35,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118943196] [2022-02-15 03:57:35,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [118943196] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:35,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:36,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-15 03:57:36,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291770095] [2022-02-15 03:57:36,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:36,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-15 03:57:36,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:36,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-15 03:57:36,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1231, Invalid=3881, Unknown=0, NotChecked=0, Total=5112 [2022-02-15 03:57:36,001 INFO L87 Difference]: Start difference. First operand 347 states and 348 transitions. Second operand has 72 states, 72 states have (on average 2.4722222222222223) internal successors, (178), 71 states have internal predecessors, (178), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:57:38,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:38,264 INFO L93 Difference]: Finished difference Result 494 states and 529 transitions. [2022-02-15 03:57:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-15 03:57:38,264 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 2.4722222222222223) internal successors, (178), 71 states have internal predecessors, (178), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 344 [2022-02-15 03:57:38,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:38,266 INFO L225 Difference]: With dead ends: 494 [2022-02-15 03:57:38,266 INFO L226 Difference]: Without dead ends: 350 [2022-02-15 03:57:38,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4685 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3823, Invalid=15917, Unknown=0, NotChecked=0, Total=19740 [2022-02-15 03:57:38,269 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 98 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:38,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 141 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 03:57:38,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-02-15 03:57:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2022-02-15 03:57:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 277 states have (on average 1.0072202166064983) internal successors, (279), 278 states have internal predecessors, (279), 36 states have call successors, (36), 36 states have call predecessors, (36), 35 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:57:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 350 transitions. [2022-02-15 03:57:38,419 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 350 transitions. Word has length 344 [2022-02-15 03:57:38,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:38,419 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 350 transitions. [2022-02-15 03:57:38,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 2.4722222222222223) internal successors, (178), 71 states have internal predecessors, (178), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:57:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 350 transitions. [2022-02-15 03:57:38,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-02-15 03:57:38,421 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:38,421 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:38,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-15 03:57:38,421 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:38,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:38,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1154824156, now seen corresponding path program 66 times [2022-02-15 03:57:38,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:38,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682743868] [2022-02-15 03:57:38,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:38,425 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:38,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:38,428 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:57:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:57:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:57:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:57:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:57:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:57:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:57:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:57:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:57:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:57:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:57:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:57:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:57:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:57:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:57:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:57:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:57:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:57:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:57:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:57:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:57:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:57:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:57:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:57:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 03:57:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 03:57:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 03:57:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 03:57:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 03:57:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 03:57:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 03:57:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 03:57:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 03:57:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:40,608 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:40,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682743868] [2022-02-15 03:57:40,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [682743868] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:40,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:40,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-15 03:57:40,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569296982] [2022-02-15 03:57:40,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:40,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-15 03:57:40,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:40,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-15 03:57:40,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=5548, Unknown=0, NotChecked=0, Total=5700 [2022-02-15 03:57:40,610 INFO L87 Difference]: Start difference. First operand 349 states and 350 transitions. Second operand has 76 states, 75 states have (on average 2.4) internal successors, (180), 74 states have internal predecessors, (180), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:57:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:47,393 INFO L93 Difference]: Finished difference Result 362 states and 363 transitions. [2022-02-15 03:57:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-15 03:57:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 2.4) internal successors, (180), 74 states have internal predecessors, (180), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 346 [2022-02-15 03:57:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:47,395 INFO L225 Difference]: With dead ends: 362 [2022-02-15 03:57:47,395 INFO L226 Difference]: Without dead ends: 360 [2022-02-15 03:57:47,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2885 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=527, Invalid=21823, Unknown=0, NotChecked=0, Total=22350 [2022-02-15 03:57:47,397 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 195 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 18249 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 18463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 18249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:47,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 414 Invalid, 18463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 18249 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 03:57:47,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-15 03:57:47,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 357. [2022-02-15 03:57:47,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 283 states have (on average 1.0070671378091873) internal successors, (285), 284 states have internal predecessors, (285), 37 states have call successors, (37), 37 states have call predecessors, (37), 36 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:57:47,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 358 transitions. [2022-02-15 03:57:47,497 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 358 transitions. Word has length 346 [2022-02-15 03:57:47,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:47,497 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 358 transitions. [2022-02-15 03:57:47,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 2.4) internal successors, (180), 74 states have internal predecessors, (180), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:57:47,497 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 358 transitions. [2022-02-15 03:57:47,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-02-15 03:57:47,498 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:47,499 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:47,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-15 03:57:47,499 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:47,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:47,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1242641922, now seen corresponding path program 67 times [2022-02-15 03:57:47,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:47,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026626104] [2022-02-15 03:57:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:47,501 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:47,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:47,503 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-15 03:57:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:57:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:57:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:57:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:57:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:57:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:57:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:57:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:57:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:57:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:57:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:57:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:57:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:57:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:57:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:57:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:57:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:57:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:57:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:57:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:57:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:57:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:57:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:57:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 03:57:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 03:57:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 03:57:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 03:57:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 03:57:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 03:57:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 03:57:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 03:57:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 03:57:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 03:57:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:48,800 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:48,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026626104] [2022-02-15 03:57:48,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1026626104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:48,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:48,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-15 03:57:48,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93906275] [2022-02-15 03:57:48,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:48,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-15 03:57:48,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:48,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-15 03:57:48,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1302, Invalid=4100, Unknown=0, NotChecked=0, Total=5402 [2022-02-15 03:57:48,802 INFO L87 Difference]: Start difference. First operand 357 states and 358 transitions. Second operand has 74 states, 74 states have (on average 2.472972972972973) internal successors, (183), 73 states have internal predecessors, (183), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:57:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:51,238 INFO L93 Difference]: Finished difference Result 508 states and 544 transitions. [2022-02-15 03:57:51,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-15 03:57:51,238 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 2.472972972972973) internal successors, (183), 73 states have internal predecessors, (183), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 354 [2022-02-15 03:57:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:51,239 INFO L225 Difference]: With dead ends: 508 [2022-02-15 03:57:51,239 INFO L226 Difference]: Without dead ends: 360 [2022-02-15 03:57:51,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4963 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4040, Invalid=16840, Unknown=0, NotChecked=0, Total=20880 [2022-02-15 03:57:51,241 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 100 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:51,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 128 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 03:57:51,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-15 03:57:51,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 359. [2022-02-15 03:57:51,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 285 states have (on average 1.0070175438596491) internal successors, (287), 286 states have internal predecessors, (287), 37 states have call successors, (37), 37 states have call predecessors, (37), 36 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:57:51,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 360 transitions. [2022-02-15 03:57:51,364 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 360 transitions. Word has length 354 [2022-02-15 03:57:51,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:51,364 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 360 transitions. [2022-02-15 03:57:51,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.472972972972973) internal successors, (183), 73 states have internal predecessors, (183), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:57:51,364 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 360 transitions. [2022-02-15 03:57:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-02-15 03:57:51,365 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:51,366 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:51,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-15 03:57:51,366 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:51,366 INFO L85 PathProgramCache]: Analyzing trace with hash 433019868, now seen corresponding path program 68 times [2022-02-15 03:57:51,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:51,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402692113] [2022-02-15 03:57:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:51,368 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:51,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:51,370 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:57:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:57:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:57:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:57:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:57:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:57:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:57:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:57:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:57:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:57:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:57:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:57:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:57:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:57:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:57:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:57:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:57:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:57:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:57:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:57:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 03:57:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 03:57:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 03:57:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 03:57:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 03:57:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 03:57:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 03:57:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 03:57:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 03:57:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 03:57:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 03:57:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 03:57:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 03:57:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 03:57:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:53,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:57:53,614 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:53,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402692113] [2022-02-15 03:57:53,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1402692113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:53,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:53,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-15 03:57:53,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724783001] [2022-02-15 03:57:53,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:53,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-15 03:57:53,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:53,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-15 03:57:53,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=5850, Unknown=0, NotChecked=0, Total=6006 [2022-02-15 03:57:53,615 INFO L87 Difference]: Start difference. First operand 359 states and 360 transitions. Second operand has 78 states, 77 states have (on average 2.4025974025974026) internal successors, (185), 76 states have internal predecessors, (185), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:58:01,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:01,498 INFO L93 Difference]: Finished difference Result 372 states and 373 transitions. [2022-02-15 03:58:01,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-15 03:58:01,498 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 2.4025974025974026) internal successors, (185), 76 states have internal predecessors, (185), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 356 [2022-02-15 03:58:01,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:01,500 INFO L225 Difference]: With dead ends: 372 [2022-02-15 03:58:01,500 INFO L226 Difference]: Without dead ends: 370 [2022-02-15 03:58:01,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3039 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=541, Invalid=23021, Unknown=0, NotChecked=0, Total=23562 [2022-02-15 03:58:01,501 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 200 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 19160 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 19380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 19160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:01,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 421 Invalid, 19380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 19160 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 03:58:01,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-02-15 03:58:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 367. [2022-02-15 03:58:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 291 states have (on average 1.006872852233677) internal successors, (293), 292 states have internal predecessors, (293), 38 states have call successors, (38), 38 states have call predecessors, (38), 37 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:58:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 368 transitions. [2022-02-15 03:58:01,645 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 368 transitions. Word has length 356 [2022-02-15 03:58:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:01,645 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 368 transitions. [2022-02-15 03:58:01,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 2.4025974025974026) internal successors, (185), 76 states have internal predecessors, (185), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:58:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 368 transitions. [2022-02-15 03:58:01,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-02-15 03:58:01,646 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:01,647 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:01,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-15 03:58:01,647 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:01,647 INFO L85 PathProgramCache]: Analyzing trace with hash 226502070, now seen corresponding path program 69 times [2022-02-15 03:58:01,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:01,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653584496] [2022-02-15 03:58:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:01,661 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:01,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:01,663 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-15 03:58:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:58:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:58:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:58:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:58:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:58:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:58:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:58:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:58:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:58:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:58:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:58:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:58:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:58:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:58:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:58:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:58:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:58:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:58:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:58:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 03:58:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 03:58:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 03:58:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 03:58:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 03:58:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 03:58:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 03:58:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 03:58:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 03:58:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 03:58:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 03:58:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 03:58:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 03:58:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 03:58:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 03:58:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:58:03,275 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:03,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653584496] [2022-02-15 03:58:03,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [653584496] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:03,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:03,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-15 03:58:03,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184701031] [2022-02-15 03:58:03,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:03,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-15 03:58:03,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:03,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-15 03:58:03,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1375, Invalid=4325, Unknown=0, NotChecked=0, Total=5700 [2022-02-15 03:58:03,276 INFO L87 Difference]: Start difference. First operand 367 states and 368 transitions. Second operand has 76 states, 76 states have (on average 2.473684210526316) internal successors, (188), 75 states have internal predecessors, (188), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:58:05,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:05,461 INFO L93 Difference]: Finished difference Result 522 states and 559 transitions. [2022-02-15 03:58:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-15 03:58:05,462 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 2.473684210526316) internal successors, (188), 75 states have internal predecessors, (188), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 364 [2022-02-15 03:58:05,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:05,463 INFO L225 Difference]: With dead ends: 522 [2022-02-15 03:58:05,463 INFO L226 Difference]: Without dead ends: 370 [2022-02-15 03:58:05,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5249 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4263, Invalid=17789, Unknown=0, NotChecked=0, Total=22052 [2022-02-15 03:58:05,465 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 102 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:05,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 135 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-15 03:58:05,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-02-15 03:58:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2022-02-15 03:58:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 293 states have (on average 1.006825938566553) internal successors, (295), 294 states have internal predecessors, (295), 38 states have call successors, (38), 38 states have call predecessors, (38), 37 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:58:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 370 transitions. [2022-02-15 03:58:05,582 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 370 transitions. Word has length 364 [2022-02-15 03:58:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:05,582 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 370 transitions. [2022-02-15 03:58:05,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 2.473684210526316) internal successors, (188), 75 states have internal predecessors, (188), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:58:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 370 transitions. [2022-02-15 03:58:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-02-15 03:58:05,584 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:05,584 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:05,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-15 03:58:05,584 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:05,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1057850860, now seen corresponding path program 70 times [2022-02-15 03:58:05,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:05,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873410763] [2022-02-15 03:58:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:05,587 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:05,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:05,589 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:58:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:58:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:58:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:58:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:58:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:58:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:58:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:58:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:58:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:58:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:58:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:58:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:58:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:58:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:58:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:58:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:58:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:58:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:58:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:58:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:58:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 03:58:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 03:58:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 03:58:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 03:58:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 03:58:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 03:58:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 03:58:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 03:58:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 03:58:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 03:58:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 03:58:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 03:58:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 03:58:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 03:58:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:58:07,893 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:07,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873410763] [2022-02-15 03:58:07,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [873410763] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:07,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:07,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-02-15 03:58:07,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295386142] [2022-02-15 03:58:07,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:07,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-15 03:58:07,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-15 03:58:07,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=6160, Unknown=0, NotChecked=0, Total=6320 [2022-02-15 03:58:07,894 INFO L87 Difference]: Start difference. First operand 369 states and 370 transitions. Second operand has 80 states, 79 states have (on average 2.4050632911392404) internal successors, (190), 78 states have internal predecessors, (190), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:58:16,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:16,261 INFO L93 Difference]: Finished difference Result 382 states and 383 transitions. [2022-02-15 03:58:16,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-15 03:58:16,262 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 2.4050632911392404) internal successors, (190), 78 states have internal predecessors, (190), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 366 [2022-02-15 03:58:16,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:16,264 INFO L225 Difference]: With dead ends: 382 [2022-02-15 03:58:16,264 INFO L226 Difference]: Without dead ends: 380 [2022-02-15 03:58:16,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3197 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=555, Invalid=24251, Unknown=0, NotChecked=0, Total=24806 [2022-02-15 03:58:16,266 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 205 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 19944 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 20170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 19944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:16,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 428 Invalid, 20170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [226 Valid, 19944 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 03:58:16,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-15 03:58:16,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 377. [2022-02-15 03:58:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 299 states have (on average 1.0066889632107023) internal successors, (301), 300 states have internal predecessors, (301), 39 states have call successors, (39), 39 states have call predecessors, (39), 38 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:58:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 378 transitions. [2022-02-15 03:58:16,421 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 378 transitions. Word has length 366 [2022-02-15 03:58:16,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:16,422 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 378 transitions. [2022-02-15 03:58:16,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 2.4050632911392404) internal successors, (190), 78 states have internal predecessors, (190), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:58:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 378 transitions. [2022-02-15 03:58:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-02-15 03:58:16,424 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:16,424 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:16,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-15 03:58:16,424 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:16,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:16,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1436388334, now seen corresponding path program 71 times [2022-02-15 03:58:16,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:16,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039986501] [2022-02-15 03:58:16,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:16,426 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:16,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:16,429 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-15 03:58:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:58:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:58:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:58:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:58:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:58:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:58:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:58:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:58:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:58:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:58:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:58:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:58:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:58:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:58:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:58:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:58:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:58:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:58:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:58:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:58:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 03:58:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 03:58:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 03:58:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 03:58:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 03:58:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 03:58:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 03:58:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 03:58:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 03:58:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 03:58:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 03:58:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 03:58:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 03:58:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 03:58:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 03:58:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:18,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:58:18,347 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:18,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039986501] [2022-02-15 03:58:18,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2039986501] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:18,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:18,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-15 03:58:18,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753881087] [2022-02-15 03:58:18,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:18,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-15 03:58:18,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:18,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-15 03:58:18,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1450, Invalid=4556, Unknown=0, NotChecked=0, Total=6006 [2022-02-15 03:58:18,350 INFO L87 Difference]: Start difference. First operand 377 states and 378 transitions. Second operand has 78 states, 78 states have (on average 2.4743589743589745) internal successors, (193), 77 states have internal predecessors, (193), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:58:20,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:20,768 INFO L93 Difference]: Finished difference Result 536 states and 574 transitions. [2022-02-15 03:58:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-15 03:58:20,768 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 2.4743589743589745) internal successors, (193), 77 states have internal predecessors, (193), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 374 [2022-02-15 03:58:20,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:20,769 INFO L225 Difference]: With dead ends: 536 [2022-02-15 03:58:20,769 INFO L226 Difference]: Without dead ends: 380 [2022-02-15 03:58:20,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5543 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4492, Invalid=18764, Unknown=0, NotChecked=0, Total=23256 [2022-02-15 03:58:20,771 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 104 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:20,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 132 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-15 03:58:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-15 03:58:20,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 379. [2022-02-15 03:58:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 301 states have (on average 1.0066445182724253) internal successors, (303), 302 states have internal predecessors, (303), 39 states have call successors, (39), 39 states have call predecessors, (39), 38 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:58:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 380 transitions. [2022-02-15 03:58:20,879 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 380 transitions. Word has length 374 [2022-02-15 03:58:20,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:20,879 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 380 transitions. [2022-02-15 03:58:20,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.4743589743589745) internal successors, (193), 77 states have internal predecessors, (193), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:58:20,879 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 380 transitions. [2022-02-15 03:58:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2022-02-15 03:58:20,881 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:20,881 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:20,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-15 03:58:20,881 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:20,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:20,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1724874036, now seen corresponding path program 72 times [2022-02-15 03:58:20,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:20,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622403840] [2022-02-15 03:58:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:20,883 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:20,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:20,885 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:58:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:58:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:58:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:58:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:58:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:58:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:58:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:58:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:58:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:58:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:58:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:58:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:58:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:58:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:58:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:58:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:58:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:58:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:58:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:58:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:58:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:58:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 03:58:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 03:58:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 03:58:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 03:58:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 03:58:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 03:58:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 03:58:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 03:58:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 03:58:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 03:58:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 03:58:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 03:58:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 03:58:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 03:58:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:23,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:58:23,152 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:23,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622403840] [2022-02-15 03:58:23,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [622403840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:23,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:23,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-02-15 03:58:23,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823765983] [2022-02-15 03:58:23,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:23,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-15 03:58:23,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:23,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-15 03:58:23,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=6478, Unknown=0, NotChecked=0, Total=6642 [2022-02-15 03:58:23,154 INFO L87 Difference]: Start difference. First operand 379 states and 380 transitions. Second operand has 82 states, 81 states have (on average 2.4074074074074074) internal successors, (195), 80 states have internal predecessors, (195), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:58:31,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:31,338 INFO L93 Difference]: Finished difference Result 392 states and 393 transitions. [2022-02-15 03:58:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-15 03:58:31,338 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 81 states have (on average 2.4074074074074074) internal successors, (195), 80 states have internal predecessors, (195), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 376 [2022-02-15 03:58:31,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:31,340 INFO L225 Difference]: With dead ends: 392 [2022-02-15 03:58:31,340 INFO L226 Difference]: Without dead ends: 390 [2022-02-15 03:58:31,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3359 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=569, Invalid=25513, Unknown=0, NotChecked=0, Total=26082 [2022-02-15 03:58:31,341 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 210 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 21016 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 21248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 21016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:31,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 439 Invalid, 21248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 21016 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 03:58:31,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-15 03:58:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 387. [2022-02-15 03:58:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 307 states have (on average 1.006514657980456) internal successors, (309), 308 states have internal predecessors, (309), 40 states have call successors, (40), 40 states have call predecessors, (40), 39 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:58:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 388 transitions. [2022-02-15 03:58:31,522 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 388 transitions. Word has length 376 [2022-02-15 03:58:31,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:31,523 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 388 transitions. [2022-02-15 03:58:31,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 81 states have (on average 2.4074074074074074) internal successors, (195), 80 states have internal predecessors, (195), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:58:31,523 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 388 transitions. [2022-02-15 03:58:31,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-02-15 03:58:31,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:31,525 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:31,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-15 03:58:31,526 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:31,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:31,526 INFO L85 PathProgramCache]: Analyzing trace with hash -998024026, now seen corresponding path program 73 times [2022-02-15 03:58:31,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:31,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252296100] [2022-02-15 03:58:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:31,528 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:31,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:31,530 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-15 03:58:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:58:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:58:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:58:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:58:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:58:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:58:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:58:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:58:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:58:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:58:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:58:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:58:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:58:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:58:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:58:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:58:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:58:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:58:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:58:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:58:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:58:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 03:58:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 03:58:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 03:58:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 03:58:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 03:58:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 03:58:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 03:58:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 03:58:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 03:58:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 03:58:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 03:58:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 03:58:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 03:58:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 03:58:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 03:58:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:58:33,290 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:33,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252296100] [2022-02-15 03:58:33,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1252296100] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:33,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:33,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-02-15 03:58:33,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745129701] [2022-02-15 03:58:33,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:33,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-15 03:58:33,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:33,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-15 03:58:33,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1527, Invalid=4793, Unknown=0, NotChecked=0, Total=6320 [2022-02-15 03:58:33,292 INFO L87 Difference]: Start difference. First operand 387 states and 388 transitions. Second operand has 80 states, 80 states have (on average 2.475) internal successors, (198), 79 states have internal predecessors, (198), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:58:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:35,793 INFO L93 Difference]: Finished difference Result 550 states and 589 transitions. [2022-02-15 03:58:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-15 03:58:35,793 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 2.475) internal successors, (198), 79 states have internal predecessors, (198), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Word has length 384 [2022-02-15 03:58:35,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:35,795 INFO L225 Difference]: With dead ends: 550 [2022-02-15 03:58:35,795 INFO L226 Difference]: Without dead ends: 390 [2022-02-15 03:58:35,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5845 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4727, Invalid=19765, Unknown=0, NotChecked=0, Total=24492 [2022-02-15 03:58:35,798 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 106 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:35,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 154 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 03:58:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-15 03:58:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 389. [2022-02-15 03:58:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 309 states have (on average 1.006472491909385) internal successors, (311), 310 states have internal predecessors, (311), 40 states have call successors, (40), 40 states have call predecessors, (40), 39 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:58:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 390 transitions. [2022-02-15 03:58:35,956 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 390 transitions. Word has length 384 [2022-02-15 03:58:35,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:35,957 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 390 transitions. [2022-02-15 03:58:35,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 2.475) internal successors, (198), 79 states have internal predecessors, (198), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:58:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 390 transitions. [2022-02-15 03:58:35,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-02-15 03:58:35,959 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:35,959 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:35,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-15 03:58:35,960 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:35,960 INFO L85 PathProgramCache]: Analyzing trace with hash 464377348, now seen corresponding path program 74 times [2022-02-15 03:58:35,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:35,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11184109] [2022-02-15 03:58:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:35,961 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:35,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:35,964 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:58:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:58:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:58:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:58:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:58:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:58:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:58:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:58:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:58:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:58:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:58:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:58:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:58:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:58:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:58:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:58:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:58:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:58:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:58:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:58:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:58:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:58:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:58:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 03:58:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 03:58:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 03:58:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 03:58:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 03:58:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 03:58:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 03:58:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 03:58:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 03:58:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 03:58:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 03:58:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 03:58:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 03:58:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 03:58:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:58:38,343 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:38,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11184109] [2022-02-15 03:58:38,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [11184109] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:38,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:38,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-02-15 03:58:38,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196015487] [2022-02-15 03:58:38,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:38,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-15 03:58:38,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:38,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-15 03:58:38,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=6804, Unknown=0, NotChecked=0, Total=6972 [2022-02-15 03:58:38,345 INFO L87 Difference]: Start difference. First operand 389 states and 390 transitions. Second operand has 84 states, 83 states have (on average 2.4096385542168677) internal successors, (200), 82 states have internal predecessors, (200), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:58:47,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:47,708 INFO L93 Difference]: Finished difference Result 402 states and 403 transitions. [2022-02-15 03:58:47,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-15 03:58:47,709 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 83 states have (on average 2.4096385542168677) internal successors, (200), 82 states have internal predecessors, (200), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Word has length 386 [2022-02-15 03:58:47,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:47,710 INFO L225 Difference]: With dead ends: 402 [2022-02-15 03:58:47,710 INFO L226 Difference]: Without dead ends: 400 [2022-02-15 03:58:47,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3525 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=583, Invalid=26807, Unknown=0, NotChecked=0, Total=27390 [2022-02-15 03:58:47,724 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 215 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 22237 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 22475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 22237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:47,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 454 Invalid, 22475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 22237 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 03:58:47,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-02-15 03:58:47,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 397. [2022-02-15 03:58:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 315 states have (on average 1.0063492063492063) internal successors, (317), 316 states have internal predecessors, (317), 41 states have call successors, (41), 41 states have call predecessors, (41), 40 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:58:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 398 transitions. [2022-02-15 03:58:47,885 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 398 transitions. Word has length 386 [2022-02-15 03:58:47,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:47,885 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 398 transitions. [2022-02-15 03:58:47,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 83 states have (on average 2.4096385542168677) internal successors, (200), 82 states have internal predecessors, (200), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:58:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 398 transitions. [2022-02-15 03:58:47,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-02-15 03:58:47,888 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:47,888 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:47,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-15 03:58:47,888 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:47,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash 418772958, now seen corresponding path program 75 times [2022-02-15 03:58:47,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:47,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933596822] [2022-02-15 03:58:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:47,891 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:47,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:47,894 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-15 03:58:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:58:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:58:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:58:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:58:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:58:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:58:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:58:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:58:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:58:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:58:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:58:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:58:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:58:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:58:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:58:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:58:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:58:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:58:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:58:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:58:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:58:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:58:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 03:58:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 03:58:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 03:58:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 03:58:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 03:58:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 03:58:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 03:58:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 03:58:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 03:58:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 03:58:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 03:58:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 03:58:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 03:58:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 03:58:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 03:58:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:58:49,517 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:49,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933596822] [2022-02-15 03:58:49,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1933596822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:49,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:49,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-02-15 03:58:49,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375053573] [2022-02-15 03:58:49,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:49,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-15 03:58:49,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:49,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-15 03:58:49,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=5036, Unknown=0, NotChecked=0, Total=6642 [2022-02-15 03:58:49,519 INFO L87 Difference]: Start difference. First operand 397 states and 398 transitions. Second operand has 82 states, 82 states have (on average 2.475609756097561) internal successors, (203), 81 states have internal predecessors, (203), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:58:51,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:51,868 INFO L93 Difference]: Finished difference Result 564 states and 604 transitions. [2022-02-15 03:58:51,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-15 03:58:51,869 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 2.475609756097561) internal successors, (203), 81 states have internal predecessors, (203), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Word has length 394 [2022-02-15 03:58:51,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:51,870 INFO L225 Difference]: With dead ends: 564 [2022-02-15 03:58:51,870 INFO L226 Difference]: Without dead ends: 400 [2022-02-15 03:58:51,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6155 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4968, Invalid=20792, Unknown=0, NotChecked=0, Total=25760 [2022-02-15 03:58:51,873 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 108 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:51,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 131 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-15 03:58:51,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-02-15 03:58:52,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 399. [2022-02-15 03:58:52,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 317 states have (on average 1.0063091482649842) internal successors, (319), 318 states have internal predecessors, (319), 41 states have call successors, (41), 41 states have call predecessors, (41), 40 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:58:52,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 400 transitions. [2022-02-15 03:58:52,018 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 400 transitions. Word has length 394 [2022-02-15 03:58:52,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:52,018 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 400 transitions. [2022-02-15 03:58:52,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 2.475609756097561) internal successors, (203), 81 states have internal predecessors, (203), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:58:52,019 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 400 transitions. [2022-02-15 03:58:52,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-02-15 03:58:52,020 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:52,020 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:52,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-15 03:58:52,020 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:52,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:52,021 INFO L85 PathProgramCache]: Analyzing trace with hash -938028100, now seen corresponding path program 76 times [2022-02-15 03:58:52,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:52,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447773124] [2022-02-15 03:58:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:52,022 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:52,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:52,024 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:58:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:58:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:58:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:58:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:58:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:58:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:58:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:58:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:58:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:58:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:58:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:58:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:58:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:58:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:58:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:58:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:58:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:58:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:58:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 03:58:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 03:58:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 03:58:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 03:58:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 03:58:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 03:58:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 03:58:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 03:58:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 03:58:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 03:58:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 03:58:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 03:58:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 03:58:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 03:58:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 03:58:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 03:58:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 03:58:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 03:58:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 03:58:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:58:54,156 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:54,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447773124] [2022-02-15 03:58:54,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1447773124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:54,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:54,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [] total 86 [2022-02-15 03:58:54,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887562488] [2022-02-15 03:58:54,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:54,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-15 03:58:54,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:54,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-15 03:58:54,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=7138, Unknown=0, NotChecked=0, Total=7310 [2022-02-15 03:58:54,158 INFO L87 Difference]: Start difference. First operand 399 states and 400 transitions. Second operand has 86 states, 85 states have (on average 2.411764705882353) internal successors, (205), 84 states have internal predecessors, (205), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:59:03,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:03,315 INFO L93 Difference]: Finished difference Result 412 states and 413 transitions. [2022-02-15 03:59:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-02-15 03:59:03,316 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 2.411764705882353) internal successors, (205), 84 states have internal predecessors, (205), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Word has length 396 [2022-02-15 03:59:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:03,326 INFO L225 Difference]: With dead ends: 412 [2022-02-15 03:59:03,326 INFO L226 Difference]: Without dead ends: 410 [2022-02-15 03:59:03,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3695 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=597, Invalid=28133, Unknown=0, NotChecked=0, Total=28730 [2022-02-15 03:59:03,328 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 220 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 23402 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 23646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 23402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:03,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 461 Invalid, 23646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 23402 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 03:59:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-02-15 03:59:03,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 407. [2022-02-15 03:59:03,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 323 states have (on average 1.0061919504643964) internal successors, (325), 324 states have internal predecessors, (325), 42 states have call successors, (42), 42 states have call predecessors, (42), 41 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:59:03,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 408 transitions. [2022-02-15 03:59:03,456 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 408 transitions. Word has length 396 [2022-02-15 03:59:03,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:03,456 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 408 transitions. [2022-02-15 03:59:03,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 2.411764705882353) internal successors, (205), 84 states have internal predecessors, (205), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:59:03,456 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 408 transitions. [2022-02-15 03:59:03,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-02-15 03:59:03,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:03,458 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:03,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-15 03:59:03,458 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:03,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:03,458 INFO L85 PathProgramCache]: Analyzing trace with hash 272743830, now seen corresponding path program 77 times [2022-02-15 03:59:03,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:03,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627893625] [2022-02-15 03:59:03,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:03,459 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:03,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:03,461 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-15 03:59:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 03:59:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 03:59:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 03:59:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 03:59:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 03:59:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 03:59:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 03:59:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 03:59:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 03:59:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 03:59:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 03:59:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 03:59:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 03:59:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 03:59:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 03:59:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 03:59:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 03:59:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 03:59:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 03:59:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 03:59:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 03:59:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 03:59:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 03:59:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 03:59:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 03:59:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 03:59:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 03:59:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 03:59:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 03:59:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 03:59:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 03:59:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 03:59:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 03:59:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 03:59:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 03:59:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 03:59:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 03:59:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 03:59:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:59:04,659 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:04,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627893625] [2022-02-15 03:59:04,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [627893625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:04,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:04,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-02-15 03:59:04,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654346835] [2022-02-15 03:59:04,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:04,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-15 03:59:04,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:04,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-15 03:59:04,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1687, Invalid=5285, Unknown=0, NotChecked=0, Total=6972 [2022-02-15 03:59:04,662 INFO L87 Difference]: Start difference. First operand 407 states and 408 transitions. Second operand has 84 states, 84 states have (on average 2.4761904761904763) internal successors, (208), 83 states have internal predecessors, (208), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:59:07,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:07,073 INFO L93 Difference]: Finished difference Result 578 states and 619 transitions. [2022-02-15 03:59:07,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-02-15 03:59:07,073 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 2.4761904761904763) internal successors, (208), 83 states have internal predecessors, (208), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 404 [2022-02-15 03:59:07,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:07,075 INFO L225 Difference]: With dead ends: 578 [2022-02-15 03:59:07,075 INFO L226 Difference]: Without dead ends: 410 [2022-02-15 03:59:07,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6473 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=5215, Invalid=21845, Unknown=0, NotChecked=0, Total=27060 [2022-02-15 03:59:07,082 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 110 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:07,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 133 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:59:07,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-02-15 03:59:07,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 409. [2022-02-15 03:59:07,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 325 states have (on average 1.0061538461538462) internal successors, (327), 326 states have internal predecessors, (327), 42 states have call successors, (42), 42 states have call predecessors, (42), 41 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:59:07,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 410 transitions. [2022-02-15 03:59:07,211 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 410 transitions. Word has length 404 [2022-02-15 03:59:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:07,211 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 410 transitions. [2022-02-15 03:59:07,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.4761904761904763) internal successors, (208), 83 states have internal predecessors, (208), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:59:07,212 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 410 transitions. [2022-02-15 03:59:07,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-02-15 03:59:07,213 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:07,214 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:07,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-15 03:59:07,214 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:07,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:07,214 INFO L85 PathProgramCache]: Analyzing trace with hash 446684148, now seen corresponding path program 78 times [2022-02-15 03:59:07,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:07,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407349652] [2022-02-15 03:59:07,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:07,215 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:07,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:07,218 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:59:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:59:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:59:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:59:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:59:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:59:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:59:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:59:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:59:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:59:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:59:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:59:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:59:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:59:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:59:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:59:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:59:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:59:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:59:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:59:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 03:59:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 03:59:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 03:59:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 03:59:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 03:59:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 03:59:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 03:59:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 03:59:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 03:59:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 03:59:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 03:59:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 03:59:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 03:59:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 03:59:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 03:59:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 03:59:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 03:59:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 03:59:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 03:59:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:59:09,479 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:09,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407349652] [2022-02-15 03:59:09,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [407349652] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:09,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:09,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [] total 88 [2022-02-15 03:59:09,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592161688] [2022-02-15 03:59:09,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:09,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-15 03:59:09,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:09,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-15 03:59:09,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=7480, Unknown=0, NotChecked=0, Total=7656 [2022-02-15 03:59:09,484 INFO L87 Difference]: Start difference. First operand 409 states and 410 transitions. Second operand has 88 states, 87 states have (on average 2.413793103448276) internal successors, (210), 86 states have internal predecessors, (210), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:59:18,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:18,880 INFO L93 Difference]: Finished difference Result 422 states and 423 transitions. [2022-02-15 03:59:18,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-15 03:59:18,881 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 2.413793103448276) internal successors, (210), 86 states have internal predecessors, (210), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 406 [2022-02-15 03:59:18,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:18,882 INFO L225 Difference]: With dead ends: 422 [2022-02-15 03:59:18,882 INFO L226 Difference]: Without dead ends: 420 [2022-02-15 03:59:18,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3869 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=611, Invalid=29491, Unknown=0, NotChecked=0, Total=30102 [2022-02-15 03:59:18,883 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 225 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 24561 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 24811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 24561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:18,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 472 Invalid, 24811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 24561 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 03:59:18,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-15 03:59:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 417. [2022-02-15 03:59:19,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 331 states have (on average 1.0060422960725075) internal successors, (333), 332 states have internal predecessors, (333), 43 states have call successors, (43), 43 states have call predecessors, (43), 42 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:59:19,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 418 transitions. [2022-02-15 03:59:19,012 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 418 transitions. Word has length 406 [2022-02-15 03:59:19,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:19,013 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 418 transitions. [2022-02-15 03:59:19,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 2.413793103448276) internal successors, (210), 86 states have internal predecessors, (210), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:59:19,013 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 418 transitions. [2022-02-15 03:59:19,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-02-15 03:59:19,015 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:19,015 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:19,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-15 03:59:19,015 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:19,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:19,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1547374030, now seen corresponding path program 79 times [2022-02-15 03:59:19,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:19,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573133508] [2022-02-15 03:59:19,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:19,016 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:19,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:19,018 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-15 03:59:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 03:59:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 03:59:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 03:59:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 03:59:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 03:59:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 03:59:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 03:59:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 03:59:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 03:59:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 03:59:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 03:59:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 03:59:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 03:59:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 03:59:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 03:59:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 03:59:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 03:59:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 03:59:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 03:59:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 03:59:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 03:59:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 03:59:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 03:59:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 03:59:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 03:59:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 03:59:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 03:59:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 03:59:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 03:59:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 03:59:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 03:59:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 03:59:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 03:59:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 03:59:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 03:59:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 03:59:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 03:59:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 03:59:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 03:59:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:20,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:59:20,712 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:20,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573133508] [2022-02-15 03:59:20,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [573133508] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:20,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:20,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [] total 86 [2022-02-15 03:59:20,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725248825] [2022-02-15 03:59:20,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:20,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-15 03:59:20,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:20,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-15 03:59:20,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=5540, Unknown=0, NotChecked=0, Total=7310 [2022-02-15 03:59:20,715 INFO L87 Difference]: Start difference. First operand 417 states and 418 transitions. Second operand has 86 states, 86 states have (on average 2.4767441860465116) internal successors, (213), 85 states have internal predecessors, (213), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:59:23,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:23,140 INFO L93 Difference]: Finished difference Result 592 states and 634 transitions. [2022-02-15 03:59:23,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-02-15 03:59:23,140 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 2.4767441860465116) internal successors, (213), 85 states have internal predecessors, (213), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Word has length 414 [2022-02-15 03:59:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:23,142 INFO L225 Difference]: With dead ends: 592 [2022-02-15 03:59:23,142 INFO L226 Difference]: Without dead ends: 420 [2022-02-15 03:59:23,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6799 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5468, Invalid=22924, Unknown=0, NotChecked=0, Total=28392 [2022-02-15 03:59:23,144 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 112 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 2233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:23,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 150 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-15 03:59:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-15 03:59:23,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2022-02-15 03:59:23,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 333 states have (on average 1.006006006006006) internal successors, (335), 334 states have internal predecessors, (335), 43 states have call successors, (43), 43 states have call predecessors, (43), 42 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:59:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 420 transitions. [2022-02-15 03:59:23,289 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 420 transitions. Word has length 414 [2022-02-15 03:59:23,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:23,290 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 420 transitions. [2022-02-15 03:59:23,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 2.4767441860465116) internal successors, (213), 85 states have internal predecessors, (213), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:59:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 420 transitions. [2022-02-15 03:59:23,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-02-15 03:59:23,291 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:23,292 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:23,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-15 03:59:23,292 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:23,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:23,292 INFO L85 PathProgramCache]: Analyzing trace with hash 33902252, now seen corresponding path program 80 times [2022-02-15 03:59:23,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:23,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32239057] [2022-02-15 03:59:23,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:23,293 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:23,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:23,296 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:59:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:59:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:59:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:59:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:59:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:59:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:59:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:59:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:59:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:59:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:59:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:59:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:59:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:59:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:59:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:59:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:59:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:59:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:59:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:59:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:59:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 03:59:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 03:59:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 03:59:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 03:59:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 03:59:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 03:59:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 03:59:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 03:59:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 03:59:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 03:59:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 03:59:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 03:59:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 03:59:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 03:59:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 03:59:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 03:59:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 03:59:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 03:59:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 03:59:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:59:26,196 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:26,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32239057] [2022-02-15 03:59:26,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [32239057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:26,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:26,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [] total 90 [2022-02-15 03:59:26,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661769530] [2022-02-15 03:59:26,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:26,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-15 03:59:26,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:26,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-15 03:59:26,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=7830, Unknown=0, NotChecked=0, Total=8010 [2022-02-15 03:59:26,198 INFO L87 Difference]: Start difference. First operand 419 states and 420 transitions. Second operand has 90 states, 89 states have (on average 2.4157303370786516) internal successors, (215), 88 states have internal predecessors, (215), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:59:36,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:36,847 INFO L93 Difference]: Finished difference Result 432 states and 433 transitions. [2022-02-15 03:59:36,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-15 03:59:36,847 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 89 states have (on average 2.4157303370786516) internal successors, (215), 88 states have internal predecessors, (215), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Word has length 416 [2022-02-15 03:59:36,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:36,849 INFO L225 Difference]: With dead ends: 432 [2022-02-15 03:59:36,849 INFO L226 Difference]: Without dead ends: 430 [2022-02-15 03:59:36,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4047 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=625, Invalid=30881, Unknown=0, NotChecked=0, Total=31506 [2022-02-15 03:59:36,851 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 230 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 26012 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 26268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 26012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:36,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 491 Invalid, 26268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 26012 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-02-15 03:59:36,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-15 03:59:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 427. [2022-02-15 03:59:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 339 states have (on average 1.0058997050147493) internal successors, (341), 340 states have internal predecessors, (341), 44 states have call successors, (44), 44 states have call predecessors, (44), 43 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 03:59:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 428 transitions. [2022-02-15 03:59:37,065 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 428 transitions. Word has length 416 [2022-02-15 03:59:37,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:37,081 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 428 transitions. [2022-02-15 03:59:37,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 89 states have (on average 2.4157303370786516) internal successors, (215), 88 states have internal predecessors, (215), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:59:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 428 transitions. [2022-02-15 03:59:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-02-15 03:59:37,084 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:37,084 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:37,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-15 03:59:37,085 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:37,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:37,085 INFO L85 PathProgramCache]: Analyzing trace with hash 423512198, now seen corresponding path program 81 times [2022-02-15 03:59:37,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:37,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249257807] [2022-02-15 03:59:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:37,091 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:37,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:37,093 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-15 03:59:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 03:59:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 03:59:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 03:59:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 03:59:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 03:59:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 03:59:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 03:59:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 03:59:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 03:59:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 03:59:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 03:59:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 03:59:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 03:59:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 03:59:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 03:59:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 03:59:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 03:59:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 03:59:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 03:59:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 03:59:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 03:59:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 03:59:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 03:59:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 03:59:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 03:59:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 03:59:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 03:59:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 03:59:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 03:59:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 03:59:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 03:59:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 03:59:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 03:59:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 03:59:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 03:59:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 03:59:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 03:59:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 03:59:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 03:59:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 03:59:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:59:38,652 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:38,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249257807] [2022-02-15 03:59:38,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1249257807] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:38,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:38,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [] total 88 [2022-02-15 03:59:38,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451766681] [2022-02-15 03:59:38,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:38,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-15 03:59:38,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:38,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-15 03:59:38,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1855, Invalid=5801, Unknown=0, NotChecked=0, Total=7656 [2022-02-15 03:59:38,654 INFO L87 Difference]: Start difference. First operand 427 states and 428 transitions. Second operand has 88 states, 88 states have (on average 2.477272727272727) internal successors, (218), 87 states have internal predecessors, (218), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:59:41,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:41,549 INFO L93 Difference]: Finished difference Result 606 states and 649 transitions. [2022-02-15 03:59:41,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-15 03:59:41,549 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 2.477272727272727) internal successors, (218), 87 states have internal predecessors, (218), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Word has length 424 [2022-02-15 03:59:41,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:41,551 INFO L225 Difference]: With dead ends: 606 [2022-02-15 03:59:41,551 INFO L226 Difference]: Without dead ends: 430 [2022-02-15 03:59:41,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7133 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=5727, Invalid=24029, Unknown=0, NotChecked=0, Total=29756 [2022-02-15 03:59:41,553 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 114 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:41,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 137 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 03:59:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-15 03:59:41,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 429. [2022-02-15 03:59:41,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 341 states have (on average 1.0058651026392962) internal successors, (343), 342 states have internal predecessors, (343), 44 states have call successors, (44), 44 states have call predecessors, (44), 43 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 03:59:41,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 430 transitions. [2022-02-15 03:59:41,698 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 430 transitions. Word has length 424 [2022-02-15 03:59:41,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:41,698 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 430 transitions. [2022-02-15 03:59:41,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.477272727272727) internal successors, (218), 87 states have internal predecessors, (218), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:59:41,698 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 430 transitions. [2022-02-15 03:59:41,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 03:59:41,700 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:41,700 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:41,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-15 03:59:41,700 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:41,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:41,701 INFO L85 PathProgramCache]: Analyzing trace with hash -712274972, now seen corresponding path program 82 times [2022-02-15 03:59:41,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:41,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620114024] [2022-02-15 03:59:41,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:41,702 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:41,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:41,704 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:59:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:59:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:59:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:59:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:59:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:59:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:59:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:59:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:59:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:59:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:59:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:59:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:59:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:59:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:59:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:59:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:59:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:59:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:59:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:59:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:59:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:59:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 03:59:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 03:59:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 03:59:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 03:59:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 03:59:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 03:59:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 03:59:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 03:59:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 03:59:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 03:59:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 03:59:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 03:59:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 03:59:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 03:59:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 03:59:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 03:59:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 03:59:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 03:59:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 03:59:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:44,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:59:44,373 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:44,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620114024] [2022-02-15 03:59:44,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [620114024] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:44,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:44,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [92] imperfect sequences [] total 92 [2022-02-15 03:59:44,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678525932] [2022-02-15 03:59:44,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:44,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-02-15 03:59:44,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:44,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-02-15 03:59:44,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=8188, Unknown=0, NotChecked=0, Total=8372 [2022-02-15 03:59:44,375 INFO L87 Difference]: Start difference. First operand 429 states and 430 transitions. Second operand has 92 states, 91 states have (on average 2.4175824175824174) internal successors, (220), 90 states have internal predecessors, (220), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:59:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:55,089 INFO L93 Difference]: Finished difference Result 442 states and 443 transitions. [2022-02-15 03:59:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-15 03:59:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 2.4175824175824174) internal successors, (220), 90 states have internal predecessors, (220), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Word has length 426 [2022-02-15 03:59:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:55,091 INFO L225 Difference]: With dead ends: 442 [2022-02-15 03:59:55,091 INFO L226 Difference]: Without dead ends: 440 [2022-02-15 03:59:55,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4229 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=639, Invalid=32303, Unknown=0, NotChecked=0, Total=32942 [2022-02-15 03:59:55,093 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 235 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 27098 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 27360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 27098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:55,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 498 Invalid, 27360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 27098 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-02-15 03:59:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-02-15 03:59:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 437. [2022-02-15 03:59:55,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 347 states have (on average 1.005763688760807) internal successors, (349), 348 states have internal predecessors, (349), 45 states have call successors, (45), 45 states have call predecessors, (45), 44 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 03:59:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 438 transitions. [2022-02-15 03:59:55,236 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 438 transitions. Word has length 426 [2022-02-15 03:59:55,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:55,236 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 438 transitions. [2022-02-15 03:59:55,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 2.4175824175824174) internal successors, (220), 90 states have internal predecessors, (220), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:59:55,236 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 438 transitions. [2022-02-15 03:59:55,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2022-02-15 03:59:55,238 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:55,238 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:55,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-15 03:59:55,239 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:55,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:55,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1003500098, now seen corresponding path program 83 times [2022-02-15 03:59:55,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:55,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974038695] [2022-02-15 03:59:55,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:55,241 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:55,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:55,243 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-15 03:59:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 03:59:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 03:59:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 03:59:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 03:59:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 03:59:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 03:59:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 03:59:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 03:59:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 03:59:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 03:59:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 03:59:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 03:59:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 03:59:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 03:59:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 03:59:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 03:59:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 03:59:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 03:59:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 03:59:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 03:59:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 03:59:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 03:59:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 03:59:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 03:59:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 03:59:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 03:59:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 03:59:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 03:59:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 03:59:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 03:59:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 03:59:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 03:59:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 03:59:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 03:59:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 03:59:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 03:59:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 03:59:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 03:59:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 03:59:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 03:59:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 03:59:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:59:56,765 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:56,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974038695] [2022-02-15 03:59:56,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1974038695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:56,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:56,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [] total 90 [2022-02-15 03:59:56,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347909982] [2022-02-15 03:59:56,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:56,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-15 03:59:56,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:56,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-15 03:59:56,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1942, Invalid=6068, Unknown=0, NotChecked=0, Total=8010 [2022-02-15 03:59:56,768 INFO L87 Difference]: Start difference. First operand 437 states and 438 transitions. Second operand has 90 states, 90 states have (on average 2.477777777777778) internal successors, (223), 89 states have internal predecessors, (223), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 03:59:59,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:59,653 INFO L93 Difference]: Finished difference Result 620 states and 664 transitions. [2022-02-15 03:59:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-15 03:59:59,653 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 2.477777777777778) internal successors, (223), 89 states have internal predecessors, (223), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Word has length 434 [2022-02-15 03:59:59,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:59,655 INFO L225 Difference]: With dead ends: 620 [2022-02-15 03:59:59,655 INFO L226 Difference]: Without dead ends: 440 [2022-02-15 03:59:59,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7475 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5992, Invalid=25160, Unknown=0, NotChecked=0, Total=31152 [2022-02-15 03:59:59,657 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 116 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:59,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 139 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 03:59:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-02-15 03:59:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2022-02-15 03:59:59,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 349 states have (on average 1.005730659025788) internal successors, (351), 350 states have internal predecessors, (351), 45 states have call successors, (45), 45 states have call predecessors, (45), 44 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 03:59:59,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 440 transitions. [2022-02-15 03:59:59,805 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 440 transitions. Word has length 434 [2022-02-15 03:59:59,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:59,805 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 440 transitions. [2022-02-15 03:59:59,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 2.477777777777778) internal successors, (223), 89 states have internal predecessors, (223), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 03:59:59,806 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 440 transitions. [2022-02-15 03:59:59,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-02-15 03:59:59,807 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:59,808 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:59,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-15 03:59:59,808 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:59,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:59,808 INFO L85 PathProgramCache]: Analyzing trace with hash -889261156, now seen corresponding path program 84 times [2022-02-15 03:59:59,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:59,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663710805] [2022-02-15 03:59:59,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:59,809 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:59,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:59,812 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 04:00:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 04:00:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 04:00:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 04:00:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:00:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:00:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:00:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:00:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:00:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:00:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:00:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:00:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:00:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:00:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:00:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:00:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:00:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:00:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:00:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:00:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:00:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:00:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:00:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:00:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:00:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:00:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:00:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:00:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:00:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:00:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:00:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:00:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:00:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:00:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:00:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:00:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:00:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:00:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:00:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:00:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:00:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:00:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:00:03,339 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:03,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663710805] [2022-02-15 04:00:03,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1663710805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:03,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:03,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [94] imperfect sequences [] total 94 [2022-02-15 04:00:03,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238621235] [2022-02-15 04:00:03,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:03,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-02-15 04:00:03,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:03,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-02-15 04:00:03,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=8554, Unknown=0, NotChecked=0, Total=8742 [2022-02-15 04:00:03,341 INFO L87 Difference]: Start difference. First operand 439 states and 440 transitions. Second operand has 94 states, 93 states have (on average 2.4193548387096775) internal successors, (225), 92 states have internal predecessors, (225), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 04:00:14,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:00:14,730 INFO L93 Difference]: Finished difference Result 452 states and 453 transitions. [2022-02-15 04:00:14,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-15 04:00:14,733 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4193548387096775) internal successors, (225), 92 states have internal predecessors, (225), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Word has length 436 [2022-02-15 04:00:14,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:00:14,735 INFO L225 Difference]: With dead ends: 452 [2022-02-15 04:00:14,735 INFO L226 Difference]: Without dead ends: 450 [2022-02-15 04:00:14,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4415 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=653, Invalid=33757, Unknown=0, NotChecked=0, Total=34410 [2022-02-15 04:00:14,739 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 240 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 28344 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 28612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 28344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:00:14,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 509 Invalid, 28612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 28344 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-02-15 04:00:14,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-15 04:00:14,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 447. [2022-02-15 04:00:14,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 355 states have (on average 1.0056338028169014) internal successors, (357), 356 states have internal predecessors, (357), 46 states have call successors, (46), 46 states have call predecessors, (46), 45 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 04:00:14,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 448 transitions. [2022-02-15 04:00:14,895 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 448 transitions. Word has length 436 [2022-02-15 04:00:14,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:00:14,895 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 448 transitions. [2022-02-15 04:00:14,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4193548387096775) internal successors, (225), 92 states have internal predecessors, (225), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 04:00:14,896 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 448 transitions. [2022-02-15 04:00:14,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2022-02-15 04:00:14,897 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:00:14,897 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:00:14,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-15 04:00:14,898 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:00:14,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:00:14,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1334051466, now seen corresponding path program 85 times [2022-02-15 04:00:14,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:00:14,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884477994] [2022-02-15 04:00:14,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:00:14,900 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:00:14,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:00:14,910 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:00:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-15 04:00:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 04:00:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 04:00:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 04:00:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:00:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:00:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:00:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:00:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:00:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:00:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:00:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:00:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:00:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:00:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:00:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:00:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:00:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:00:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:00:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:00:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:00:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:00:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:00:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:00:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:00:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:00:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:00:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:00:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:00:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:00:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:00:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:00:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:00:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:00:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:00:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:00:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:00:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:16,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:00:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:00:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:17,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:00:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:17,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:00:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:17,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:00:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:00:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:17,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:00:17,008 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:17,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884477994] [2022-02-15 04:00:17,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1884477994] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:17,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:17,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [92] imperfect sequences [] total 92 [2022-02-15 04:00:17,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179612253] [2022-02-15 04:00:17,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:17,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-02-15 04:00:17,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:17,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-02-15 04:00:17,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2031, Invalid=6341, Unknown=0, NotChecked=0, Total=8372 [2022-02-15 04:00:17,012 INFO L87 Difference]: Start difference. First operand 447 states and 448 transitions. Second operand has 92 states, 92 states have (on average 2.4782608695652173) internal successors, (228), 91 states have internal predecessors, (228), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 04:00:20,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:00:20,869 INFO L93 Difference]: Finished difference Result 634 states and 679 transitions. [2022-02-15 04:00:20,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-02-15 04:00:20,869 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 2.4782608695652173) internal successors, (228), 91 states have internal predecessors, (228), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 444 [2022-02-15 04:00:20,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:00:20,871 INFO L225 Difference]: With dead ends: 634 [2022-02-15 04:00:20,871 INFO L226 Difference]: Without dead ends: 450 [2022-02-15 04:00:20,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7825 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=6263, Invalid=26317, Unknown=0, NotChecked=0, Total=32580 [2022-02-15 04:00:20,877 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 118 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 2185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:00:20,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 146 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2185 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 04:00:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-15 04:00:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 449. [2022-02-15 04:00:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 357 states have (on average 1.0056022408963585) internal successors, (359), 358 states have internal predecessors, (359), 46 states have call successors, (46), 46 states have call predecessors, (46), 45 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 04:00:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 450 transitions. [2022-02-15 04:00:21,120 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 450 transitions. Word has length 444 [2022-02-15 04:00:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:00:21,120 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 450 transitions. [2022-02-15 04:00:21,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 2.4782608695652173) internal successors, (228), 91 states have internal predecessors, (228), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 04:00:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 450 transitions. [2022-02-15 04:00:21,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-02-15 04:00:21,122 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:00:21,122 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:00:21,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-15 04:00:21,123 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:00:21,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:00:21,123 INFO L85 PathProgramCache]: Analyzing trace with hash -323754540, now seen corresponding path program 86 times [2022-02-15 04:00:21,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:00:21,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039304876] [2022-02-15 04:00:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:00:21,125 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:00:21,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:00:21,127 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:00:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 04:00:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 04:00:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 04:00:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 04:00:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:00:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:00:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:00:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:00:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:00:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:00:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:00:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:00:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:00:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:00:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:00:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:00:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:00:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:00:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:00:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:00:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:00:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:00:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:00:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:00:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:00:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:00:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:00:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:00:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:00:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:00:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:00:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:00:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:00:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:00:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:00:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:00:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:00:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:00:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:00:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:00:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:00:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:00:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:00:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:00:24,135 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:24,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039304876] [2022-02-15 04:00:24,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2039304876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:24,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:24,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2022-02-15 04:00:24,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520164744] [2022-02-15 04:00:24,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:24,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-15 04:00:24,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:24,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-15 04:00:24,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=8928, Unknown=0, NotChecked=0, Total=9120 [2022-02-15 04:00:24,138 INFO L87 Difference]: Start difference. First operand 449 states and 450 transitions. Second operand has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 94 states have internal predecessors, (230), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 04:00:35,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:00:35,799 INFO L93 Difference]: Finished difference Result 462 states and 463 transitions. [2022-02-15 04:00:35,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-15 04:00:35,800 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 94 states have internal predecessors, (230), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 446 [2022-02-15 04:00:35,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:00:35,801 INFO L225 Difference]: With dead ends: 462 [2022-02-15 04:00:35,801 INFO L226 Difference]: Without dead ends: 460 [2022-02-15 04:00:35,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4605 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=667, Invalid=35243, Unknown=0, NotChecked=0, Total=35910 [2022-02-15 04:00:35,813 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 245 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 29296 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 29570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 29296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:00:35,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 516 Invalid, 29570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 29296 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-02-15 04:00:35,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-02-15 04:00:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 457. [2022-02-15 04:00:35,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 363 states have (on average 1.0055096418732783) internal successors, (365), 364 states have internal predecessors, (365), 47 states have call successors, (47), 47 states have call predecessors, (47), 46 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 04:00:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 458 transitions. [2022-02-15 04:00:35,984 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 458 transitions. Word has length 446 [2022-02-15 04:00:35,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:00:35,984 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 458 transitions. [2022-02-15 04:00:35,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 94 states have internal predecessors, (230), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 04:00:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 458 transitions. [2022-02-15 04:00:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2022-02-15 04:00:35,986 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:00:35,986 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:00:35,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-15 04:00:35,986 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:00:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:00:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash -32032850, now seen corresponding path program 87 times [2022-02-15 04:00:35,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:00:35,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217947655] [2022-02-15 04:00:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:00:35,988 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:00:35,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:00:35,990 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:00:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-15 04:00:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 04:00:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 04:00:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 04:00:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:00:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:00:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:00:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:00:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:00:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:00:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:00:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:00:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:00:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:00:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:00:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:00:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:00:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:00:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:00:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:00:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:00:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:00:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:00:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:00:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:00:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:00:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:00:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:00:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:00:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:00:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:00:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:00:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:00:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:00:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:00:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:00:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:00:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:00:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:00:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:00:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:00:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:00:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:00:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:00:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:00:37,919 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:37,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217947655] [2022-02-15 04:00:37,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [217947655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:37,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:37,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [94] imperfect sequences [] total 94 [2022-02-15 04:00:37,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250539901] [2022-02-15 04:00:37,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:37,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-02-15 04:00:37,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:37,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-02-15 04:00:37,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2122, Invalid=6620, Unknown=0, NotChecked=0, Total=8742 [2022-02-15 04:00:37,921 INFO L87 Difference]: Start difference. First operand 457 states and 458 transitions. Second operand has 94 states, 94 states have (on average 2.478723404255319) internal successors, (233), 93 states have internal predecessors, (233), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 04:00:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:00:41,101 INFO L93 Difference]: Finished difference Result 648 states and 694 transitions. [2022-02-15 04:00:41,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-15 04:00:41,102 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 2.478723404255319) internal successors, (233), 93 states have internal predecessors, (233), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 454 [2022-02-15 04:00:41,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:00:41,104 INFO L225 Difference]: With dead ends: 648 [2022-02-15 04:00:41,104 INFO L226 Difference]: Without dead ends: 460 [2022-02-15 04:00:41,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8183 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=6540, Invalid=27500, Unknown=0, NotChecked=0, Total=34040 [2022-02-15 04:00:41,106 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 120 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:00:41,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 168 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-15 04:00:41,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-02-15 04:00:41,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2022-02-15 04:00:41,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 365 states have (on average 1.0054794520547945) internal successors, (367), 366 states have internal predecessors, (367), 47 states have call successors, (47), 47 states have call predecessors, (47), 46 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 04:00:41,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 460 transitions. [2022-02-15 04:00:41,279 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 460 transitions. Word has length 454 [2022-02-15 04:00:41,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:00:41,279 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 460 transitions. [2022-02-15 04:00:41,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 2.478723404255319) internal successors, (233), 93 states have internal predecessors, (233), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 04:00:41,279 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 460 transitions. [2022-02-15 04:00:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-02-15 04:00:41,282 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:00:41,282 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:00:41,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-15 04:00:41,282 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:00:41,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:00:41,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1886993780, now seen corresponding path program 88 times [2022-02-15 04:00:41,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:00:41,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697117127] [2022-02-15 04:00:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:00:41,284 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:00:41,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:00:41,287 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:00:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 04:00:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 04:00:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 04:00:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 04:00:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:00:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:00:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:00:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:00:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:00:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:00:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:00:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:00:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:00:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:00:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:00:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:00:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:00:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:00:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:00:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:00:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:00:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:00:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:00:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:00:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:00:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:00:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:00:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:00:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:00:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:00:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:00:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:00:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:00:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:00:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:00:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:00:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:00:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:00:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:00:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:00:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:00:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:00:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:00:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:00:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:00:44,989 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:44,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697117127] [2022-02-15 04:00:44,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1697117127] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:44,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:44,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2022-02-15 04:00:44,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110699902] [2022-02-15 04:00:44,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:44,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-15 04:00:44,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:44,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-15 04:00:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=9310, Unknown=0, NotChecked=0, Total=9506 [2022-02-15 04:00:44,992 INFO L87 Difference]: Start difference. First operand 459 states and 460 transitions. Second operand has 98 states, 97 states have (on average 2.422680412371134) internal successors, (235), 96 states have internal predecessors, (235), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 04:00:56,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:00:56,903 INFO L93 Difference]: Finished difference Result 472 states and 473 transitions. [2022-02-15 04:00:56,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-02-15 04:00:56,904 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 2.422680412371134) internal successors, (235), 96 states have internal predecessors, (235), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 456 [2022-02-15 04:00:56,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:00:56,921 INFO L225 Difference]: With dead ends: 472 [2022-02-15 04:00:56,921 INFO L226 Difference]: Without dead ends: 470 [2022-02-15 04:00:56,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4799 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=681, Invalid=36761, Unknown=0, NotChecked=0, Total=37442 [2022-02-15 04:00:56,924 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 250 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 30920 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 31200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 30920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:00:56,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 531 Invalid, 31200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 30920 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-02-15 04:00:56,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-02-15 04:00:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 467. [2022-02-15 04:00:57,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 371 states have (on average 1.005390835579515) internal successors, (373), 372 states have internal predecessors, (373), 48 states have call successors, (48), 48 states have call predecessors, (48), 47 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 04:00:57,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 468 transitions. [2022-02-15 04:00:57,184 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 468 transitions. Word has length 456 [2022-02-15 04:00:57,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:00:57,185 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 468 transitions. [2022-02-15 04:00:57,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 2.422680412371134) internal successors, (235), 96 states have internal predecessors, (235), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 04:00:57,185 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 468 transitions. [2022-02-15 04:00:57,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-02-15 04:00:57,187 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:00:57,188 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:00:57,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-15 04:00:57,188 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:00:57,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:00:57,188 INFO L85 PathProgramCache]: Analyzing trace with hash 259906662, now seen corresponding path program 89 times [2022-02-15 04:00:57,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:00:57,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311189774] [2022-02-15 04:00:57,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:00:57,190 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:00:57,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:00:57,193 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:00:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-15 04:00:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 04:00:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 04:00:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 04:00:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:00:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:00:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:00:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:00:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:00:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:00:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:00:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:00:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:00:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:00:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:00:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:00:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:00:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:00:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:00:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:00:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:00:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:00:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:00:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:00:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:00:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:00:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:00:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:00:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:00:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:00:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:00:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:00:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:00:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:00:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:00:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:00:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:00:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:00:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:00:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:00:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:00:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:00:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:00:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:00:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:00:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:00:59,314 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:59,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311189774] [2022-02-15 04:00:59,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [311189774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:59,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:59,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2022-02-15 04:00:59,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644261361] [2022-02-15 04:00:59,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:59,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-15 04:00:59,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:59,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-15 04:00:59,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2215, Invalid=6905, Unknown=0, NotChecked=0, Total=9120 [2022-02-15 04:00:59,316 INFO L87 Difference]: Start difference. First operand 467 states and 468 transitions. Second operand has 96 states, 96 states have (on average 2.4791666666666665) internal successors, (238), 95 states have internal predecessors, (238), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 04:01:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:01:02,785 INFO L93 Difference]: Finished difference Result 662 states and 709 transitions. [2022-02-15 04:01:02,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-15 04:01:02,786 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.4791666666666665) internal successors, (238), 95 states have internal predecessors, (238), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 464 [2022-02-15 04:01:02,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:01:02,788 INFO L225 Difference]: With dead ends: 662 [2022-02-15 04:01:02,788 INFO L226 Difference]: Without dead ends: 470 [2022-02-15 04:01:02,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8549 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=6823, Invalid=28709, Unknown=0, NotChecked=0, Total=35532 [2022-02-15 04:01:02,792 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 122 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:01:02,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 140 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 04:01:02,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-02-15 04:01:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2022-02-15 04:01:03,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 373 states have (on average 1.0053619302949062) internal successors, (375), 374 states have internal predecessors, (375), 48 states have call successors, (48), 48 states have call predecessors, (48), 47 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 04:01:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 470 transitions. [2022-02-15 04:01:03,027 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 470 transitions. Word has length 464 [2022-02-15 04:01:03,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:01:03,027 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 470 transitions. [2022-02-15 04:01:03,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 2.4791666666666665) internal successors, (238), 95 states have internal predecessors, (238), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 04:01:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 470 transitions. [2022-02-15 04:01:03,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-02-15 04:01:03,030 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:01:03,030 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:01:03,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-15 04:01:03,030 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:01:03,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:01:03,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1222371780, now seen corresponding path program 90 times [2022-02-15 04:01:03,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:01:03,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895053395] [2022-02-15 04:01:03,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:01:03,031 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:01:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:01:03,034 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:01:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:01:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 04:01:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 04:01:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 04:01:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 04:01:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:01:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:01:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:01:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:01:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:01:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:01:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:01:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:01:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:01:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:01:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:01:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:01:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:01:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:01:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:01:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:01:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:01:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:01:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:01:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:01:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:01:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:01:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:01:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:01:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:01:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:01:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:01:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:01:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:01:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:01:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:01:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:01:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:01:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:01:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:01:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:01:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:01:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:01:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:01:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:01:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:01:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:01:06,112 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:01:06,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895053395] [2022-02-15 04:01:06,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [895053395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:01:06,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:01:06,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [100] imperfect sequences [] total 100 [2022-02-15 04:01:06,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401863752] [2022-02-15 04:01:06,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:01:06,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-15 04:01:06,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:01:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-15 04:01:06,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=9700, Unknown=0, NotChecked=0, Total=9900 [2022-02-15 04:01:06,115 INFO L87 Difference]: Start difference. First operand 469 states and 470 transitions. Second operand has 100 states, 99 states have (on average 2.4242424242424243) internal successors, (240), 98 states have internal predecessors, (240), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 04:01:18,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:01:18,646 INFO L93 Difference]: Finished difference Result 482 states and 483 transitions. [2022-02-15 04:01:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-15 04:01:18,647 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 2.4242424242424243) internal successors, (240), 98 states have internal predecessors, (240), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 466 [2022-02-15 04:01:18,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:01:18,660 INFO L225 Difference]: With dead ends: 482 [2022-02-15 04:01:18,660 INFO L226 Difference]: Without dead ends: 480 [2022-02-15 04:01:18,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4997 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=695, Invalid=38311, Unknown=0, NotChecked=0, Total=39006 [2022-02-15 04:01:18,662 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 255 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 31914 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 32200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 31914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:01:18,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 538 Invalid, 32200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 31914 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-02-15 04:01:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-02-15 04:01:18,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 477. [2022-02-15 04:01:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 379 states have (on average 1.0052770448548813) internal successors, (381), 380 states have internal predecessors, (381), 49 states have call successors, (49), 49 states have call predecessors, (49), 48 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 04:01:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 478 transitions. [2022-02-15 04:01:18,884 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 478 transitions. Word has length 466 [2022-02-15 04:01:18,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:01:18,884 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 478 transitions. [2022-02-15 04:01:18,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 2.4242424242424243) internal successors, (240), 98 states have internal predecessors, (240), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 04:01:18,884 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 478 transitions. [2022-02-15 04:01:18,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-02-15 04:01:18,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:01:18,887 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:01:18,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-15 04:01:18,887 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:01:18,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:01:18,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2142522270, now seen corresponding path program 91 times [2022-02-15 04:01:18,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:01:18,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648277775] [2022-02-15 04:01:18,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:01:18,889 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:01:18,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:01:18,893 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:01:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:01:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-15 04:01:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 04:01:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 04:01:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 04:01:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:01:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:01:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:01:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:01:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:01:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:01:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:01:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:01:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:01:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:01:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:01:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:01:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:01:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:01:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:01:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:01:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:01:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:01:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:01:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:01:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:01:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:01:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:01:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:01:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:01:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:01:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:01:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:01:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:01:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:01:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:01:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:01:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:01:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:01:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:01:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:01:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:01:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:01:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:01:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:01:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:01:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-15 04:01:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:01:21,583 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:01:21,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648277775] [2022-02-15 04:01:21,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [648277775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:01:21,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:01:21,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2022-02-15 04:01:21,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753807545] [2022-02-15 04:01:21,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:01:21,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-15 04:01:21,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:01:21,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-15 04:01:21,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=7196, Unknown=0, NotChecked=0, Total=9506 [2022-02-15 04:01:21,587 INFO L87 Difference]: Start difference. First operand 477 states and 478 transitions. Second operand has 98 states, 98 states have (on average 2.479591836734694) internal successors, (243), 97 states have internal predecessors, (243), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 04:01:24,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:01:24,874 INFO L93 Difference]: Finished difference Result 676 states and 724 transitions. [2022-02-15 04:01:24,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-15 04:01:24,874 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 2.479591836734694) internal successors, (243), 97 states have internal predecessors, (243), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 474 [2022-02-15 04:01:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:01:24,876 INFO L225 Difference]: With dead ends: 676 [2022-02-15 04:01:24,876 INFO L226 Difference]: Without dead ends: 480 [2022-02-15 04:01:24,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8923 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=7112, Invalid=29944, Unknown=0, NotChecked=0, Total=37056 [2022-02-15 04:01:24,878 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 124 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:01:24,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 162 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 04:01:24,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-02-15 04:01:25,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2022-02-15 04:01:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 381 states have (on average 1.005249343832021) internal successors, (383), 382 states have internal predecessors, (383), 49 states have call successors, (49), 49 states have call predecessors, (49), 48 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 04:01:25,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 480 transitions. [2022-02-15 04:01:25,080 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 480 transitions. Word has length 474 [2022-02-15 04:01:25,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:01:25,080 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 480 transitions. [2022-02-15 04:01:25,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.479591836734694) internal successors, (243), 97 states have internal predecessors, (243), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 04:01:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 480 transitions. [2022-02-15 04:01:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-02-15 04:01:25,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:01:25,082 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:01:25,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-15 04:01:25,082 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:01:25,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:01:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1688189820, now seen corresponding path program 92 times [2022-02-15 04:01:25,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:01:25,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990567153] [2022-02-15 04:01:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:01:25,084 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:01:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:01:25,087 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:01:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:01:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 04:01:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 04:01:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 04:01:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:01:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:01:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:01:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:01:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:01:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:01:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:01:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:01:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:01:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:01:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:01:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:01:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:01:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:01:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:01:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:01:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:01:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:01:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:01:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:01:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:01:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:01:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:01:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:01:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:01:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:01:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:01:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:01:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:01:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:01:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:01:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:01:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:01:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:01:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:01:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:01:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:01:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:01:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:01:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-15 04:01:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-15 04:01:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-15 04:01:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-15 04:01:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:01:28,927 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:01:28,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990567153] [2022-02-15 04:01:28,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1990567153] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:01:28,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:01:28,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-02-15 04:01:28,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71102069] [2022-02-15 04:01:28,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:01:28,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-15 04:01:28,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:01:28,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-15 04:01:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=10098, Unknown=0, NotChecked=0, Total=10302 [2022-02-15 04:01:28,930 INFO L87 Difference]: Start difference. First operand 479 states and 480 transitions. Second operand has 102 states, 101 states have (on average 2.4257425742574257) internal successors, (245), 100 states have internal predecessors, (245), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 04:01:41,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:01:41,439 INFO L93 Difference]: Finished difference Result 492 states and 493 transitions. [2022-02-15 04:01:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-15 04:01:41,440 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 2.4257425742574257) internal successors, (245), 100 states have internal predecessors, (245), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 476 [2022-02-15 04:01:41,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:01:41,442 INFO L225 Difference]: With dead ends: 492 [2022-02-15 04:01:41,442 INFO L226 Difference]: Without dead ends: 490 [2022-02-15 04:01:41,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5199 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=709, Invalid=39893, Unknown=0, NotChecked=0, Total=40602 [2022-02-15 04:01:41,445 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 260 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 33265 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 33557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 33265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:01:41,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 549 Invalid, 33557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 33265 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-02-15 04:01:41,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-02-15 04:01:41,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 487. [2022-02-15 04:01:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 387 states have (on average 1.0051679586563307) internal successors, (389), 388 states have internal predecessors, (389), 50 states have call successors, (50), 50 states have call predecessors, (50), 49 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 04:01:41,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 488 transitions. [2022-02-15 04:01:41,634 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 488 transitions. Word has length 476 [2022-02-15 04:01:41,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:01:41,635 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 488 transitions. [2022-02-15 04:01:41,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 2.4257425742574257) internal successors, (245), 100 states have internal predecessors, (245), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 04:01:41,635 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 488 transitions. [2022-02-15 04:01:41,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-15 04:01:41,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:01:41,637 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:01:41,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-15 04:01:41,637 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:01:41,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:01:41,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1740184234, now seen corresponding path program 93 times [2022-02-15 04:01:41,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:01:41,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673955244] [2022-02-15 04:01:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:01:41,639 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:01:41,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:01:41,642 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:01:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:01:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-15 04:01:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 04:01:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 04:01:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:01:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:01:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:01:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:01:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:01:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:01:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:01:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:01:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:01:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:01:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:01:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:01:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:01:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:01:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:01:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:01:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:01:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:01:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:01:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:01:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:01:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:01:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:01:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:01:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:01:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:01:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:01:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:01:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:01:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:01:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:01:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:01:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:01:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:01:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:01:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:01:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:01:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:01:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:01:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-15 04:01:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-15 04:01:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-15 04:01:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-15 04:01:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-15 04:01:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:01:44,084 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:01:44,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673955244] [2022-02-15 04:01:44,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1673955244] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:01:44,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:01:44,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [100] imperfect sequences [] total 100 [2022-02-15 04:01:44,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989879245] [2022-02-15 04:01:44,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:01:44,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-15 04:01:44,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:01:44,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-15 04:01:44,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2407, Invalid=7493, Unknown=0, NotChecked=0, Total=9900 [2022-02-15 04:01:44,088 INFO L87 Difference]: Start difference. First operand 487 states and 488 transitions. Second operand has 100 states, 100 states have (on average 2.48) internal successors, (248), 99 states have internal predecessors, (248), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 04:01:47,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:01:47,895 INFO L93 Difference]: Finished difference Result 690 states and 739 transitions. [2022-02-15 04:01:47,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-02-15 04:01:47,896 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 2.48) internal successors, (248), 99 states have internal predecessors, (248), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 484 [2022-02-15 04:01:47,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:01:47,898 INFO L225 Difference]: With dead ends: 690 [2022-02-15 04:01:47,898 INFO L226 Difference]: Without dead ends: 490 [2022-02-15 04:01:47,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9305 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=7407, Invalid=31205, Unknown=0, NotChecked=0, Total=38612 [2022-02-15 04:01:47,901 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 126 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 04:01:47,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 154 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 04:01:47,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-02-15 04:01:48,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 489. [2022-02-15 04:01:48,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 389 states have (on average 1.0051413881748072) internal successors, (391), 390 states have internal predecessors, (391), 50 states have call successors, (50), 50 states have call predecessors, (50), 49 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 04:01:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 490 transitions. [2022-02-15 04:01:48,118 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 490 transitions. Word has length 484 [2022-02-15 04:01:48,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:01:48,118 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 490 transitions. [2022-02-15 04:01:48,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 2.48) internal successors, (248), 99 states have internal predecessors, (248), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 04:01:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 490 transitions. [2022-02-15 04:01:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-02-15 04:01:48,121 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:01:48,121 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:01:48,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-15 04:01:48,121 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:01:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:01:48,121 INFO L85 PathProgramCache]: Analyzing trace with hash -616130636, now seen corresponding path program 94 times [2022-02-15 04:01:48,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:01:48,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361294605] [2022-02-15 04:01:48,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:01:48,126 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:01:48,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:01:48,131 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:01:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:01:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 04:01:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 04:01:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 04:01:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:01:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:01:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:01:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:01:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:01:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:01:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:01:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:01:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:01:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:01:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:01:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:01:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:01:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:01:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:01:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:01:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:01:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:01:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:01:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:01:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:01:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:01:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:01:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:01:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:01:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:01:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:01:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:01:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:01:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:01:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:01:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:01:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:01:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:01:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:01:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:01:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:01:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:01:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:01:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:01:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-15 04:01:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-15 04:01:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-15 04:01:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-15 04:01:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:01:51,527 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:01:51,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361294605] [2022-02-15 04:01:51,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [361294605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:01:51,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:01:51,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [] total 104 [2022-02-15 04:01:51,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744352935] [2022-02-15 04:01:51,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:01:51,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-02-15 04:01:51,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:01:51,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-02-15 04:01:51,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=10504, Unknown=0, NotChecked=0, Total=10712 [2022-02-15 04:01:51,529 INFO L87 Difference]: Start difference. First operand 489 states and 490 transitions. Second operand has 104 states, 103 states have (on average 2.4271844660194173) internal successors, (250), 102 states have internal predecessors, (250), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 04:02:04,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:02:04,948 INFO L93 Difference]: Finished difference Result 502 states and 503 transitions. [2022-02-15 04:02:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-15 04:02:04,948 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 103 states have (on average 2.4271844660194173) internal successors, (250), 102 states have internal predecessors, (250), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 486 [2022-02-15 04:02:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:02:04,950 INFO L225 Difference]: With dead ends: 502 [2022-02-15 04:02:04,950 INFO L226 Difference]: Without dead ends: 500 [2022-02-15 04:02:04,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5405 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=723, Invalid=41507, Unknown=0, NotChecked=0, Total=42230 [2022-02-15 04:02:04,953 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 265 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 34994 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 35292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 34994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:02:04,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 564 Invalid, 35292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 34994 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-02-15 04:02:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-02-15 04:02:05,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 497. [2022-02-15 04:02:05,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 395 states have (on average 1.0050632911392405) internal successors, (397), 396 states have internal predecessors, (397), 51 states have call successors, (51), 51 states have call predecessors, (51), 50 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 04:02:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 498 transitions. [2022-02-15 04:02:05,238 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 498 transitions. Word has length 486 [2022-02-15 04:02:05,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:02:05,239 INFO L470 AbstractCegarLoop]: Abstraction has 497 states and 498 transitions. [2022-02-15 04:02:05,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 2.4271844660194173) internal successors, (250), 102 states have internal predecessors, (250), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 04:02:05,239 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 498 transitions. [2022-02-15 04:02:05,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-02-15 04:02:05,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:02:05,241 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:02:05,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-15 04:02:05,242 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:02:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:02:05,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1196034446, now seen corresponding path program 95 times [2022-02-15 04:02:05,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:02:05,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048482571] [2022-02-15 04:02:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:02:05,243 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:02:05,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:02:05,247 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:02:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:02:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-15 04:02:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 04:02:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 04:02:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:02:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:02:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:02:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:02:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:02:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:02:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:02:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:02:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:02:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:02:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:02:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:02:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:02:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:02:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:02:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:02:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:02:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:02:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:02:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:02:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:02:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:02:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:02:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:02:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:02:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:02:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:02:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:02:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:02:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:02:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:02:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:02:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:02:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:02:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:02:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:02:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:02:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:02:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:02:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:02:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-15 04:02:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-15 04:02:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-15 04:02:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-15 04:02:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-15 04:02:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:02:08,255 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:02:08,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048482571] [2022-02-15 04:02:08,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1048482571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:02:08,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:02:08,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-02-15 04:02:08,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848760759] [2022-02-15 04:02:08,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:02:08,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-15 04:02:08,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:02:08,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-15 04:02:08,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2506, Invalid=7796, Unknown=0, NotChecked=0, Total=10302 [2022-02-15 04:02:08,257 INFO L87 Difference]: Start difference. First operand 497 states and 498 transitions. Second operand has 102 states, 102 states have (on average 2.480392156862745) internal successors, (253), 101 states have internal predecessors, (253), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 04:02:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:02:12,137 INFO L93 Difference]: Finished difference Result 704 states and 754 transitions. [2022-02-15 04:02:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-15 04:02:12,137 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 2.480392156862745) internal successors, (253), 101 states have internal predecessors, (253), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 494 [2022-02-15 04:02:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:02:12,139 INFO L225 Difference]: With dead ends: 704 [2022-02-15 04:02:12,139 INFO L226 Difference]: Without dead ends: 500 [2022-02-15 04:02:12,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9695 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=7708, Invalid=32492, Unknown=0, NotChecked=0, Total=40200 [2022-02-15 04:02:12,142 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 128 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 3003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:02:12,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 166 Invalid, 3003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-15 04:02:12,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-02-15 04:02:12,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 499. [2022-02-15 04:02:12,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 397 states have (on average 1.0050377833753148) internal successors, (399), 398 states have internal predecessors, (399), 51 states have call successors, (51), 51 states have call predecessors, (51), 50 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 04:02:12,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 500 transitions. [2022-02-15 04:02:12,381 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 500 transitions. Word has length 494 [2022-02-15 04:02:12,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:02:12,381 INFO L470 AbstractCegarLoop]: Abstraction has 499 states and 500 transitions. [2022-02-15 04:02:12,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.480392156862745) internal successors, (253), 101 states have internal predecessors, (253), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 04:02:12,382 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 500 transitions. [2022-02-15 04:02:12,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-02-15 04:02:12,384 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:02:12,385 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:02:12,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-15 04:02:12,385 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:02:12,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:02:12,385 INFO L85 PathProgramCache]: Analyzing trace with hash -942875028, now seen corresponding path program 96 times [2022-02-15 04:02:12,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:02:12,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709883481] [2022-02-15 04:02:12,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:02:12,386 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:02:12,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:02:12,390 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:02:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:02:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 04:02:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 04:02:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 04:02:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:02:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:02:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:02:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:02:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:02:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:02:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:02:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:02:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:02:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:02:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:02:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:02:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:02:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:02:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:02:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:02:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:02:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:02:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:02:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:02:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:02:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:02:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:02:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:02:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:02:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:02:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:02:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:02:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:02:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:02:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:02:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:02:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:02:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:02:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:02:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:02:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:02:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:02:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:02:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:02:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:02:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-15 04:02:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-15 04:02:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-15 04:02:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-15 04:02:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:02:16,142 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:02:16,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709883481] [2022-02-15 04:02:16,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1709883481] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:02:16,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:02:16,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [106] imperfect sequences [] total 106 [2022-02-15 04:02:16,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652564333] [2022-02-15 04:02:16,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:02:16,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-02-15 04:02:16,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:02:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-02-15 04:02:16,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=10918, Unknown=0, NotChecked=0, Total=11130 [2022-02-15 04:02:16,144 INFO L87 Difference]: Start difference. First operand 499 states and 500 transitions. Second operand has 106 states, 105 states have (on average 2.4285714285714284) internal successors, (255), 104 states have internal predecessors, (255), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 04:02:31,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:02:31,495 INFO L93 Difference]: Finished difference Result 512 states and 513 transitions. [2022-02-15 04:02:31,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-15 04:02:31,495 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 105 states have (on average 2.4285714285714284) internal successors, (255), 104 states have internal predecessors, (255), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 496 [2022-02-15 04:02:31,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:02:31,497 INFO L225 Difference]: With dead ends: 512 [2022-02-15 04:02:31,497 INFO L226 Difference]: Without dead ends: 510 [2022-02-15 04:02:31,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5615 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=737, Invalid=43153, Unknown=0, NotChecked=0, Total=43890 [2022-02-15 04:02:31,499 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 270 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 36564 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 36868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 36564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-02-15 04:02:31,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 579 Invalid, 36868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [304 Valid, 36564 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-02-15 04:02:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-02-15 04:02:31,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 507. [2022-02-15 04:02:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 403 states have (on average 1.0049627791563276) internal successors, (405), 404 states have internal predecessors, (405), 52 states have call successors, (52), 52 states have call predecessors, (52), 51 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 04:02:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 508 transitions. [2022-02-15 04:02:31,743 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 508 transitions. Word has length 496 [2022-02-15 04:02:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:02:31,743 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 508 transitions. [2022-02-15 04:02:31,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 105 states have (on average 2.4285714285714284) internal successors, (255), 104 states have internal predecessors, (255), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 04:02:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 508 transitions. [2022-02-15 04:02:31,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-02-15 04:02:31,746 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:02:31,747 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:02:31,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-15 04:02:31,747 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:02:31,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:02:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1789257658, now seen corresponding path program 97 times [2022-02-15 04:02:31,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:02:31,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856542317] [2022-02-15 04:02:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:02:31,749 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:02:31,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:02:31,753 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:02:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:02:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-15 04:02:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 04:02:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 04:02:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:02:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:02:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:02:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:02:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:02:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:02:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:02:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:02:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:02:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:02:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:02:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:02:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:02:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:02:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:02:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:02:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:02:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:02:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:02:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:02:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:02:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:02:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:02:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:02:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:02:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:02:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:02:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:02:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:02:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:02:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:02:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:02:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:02:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:02:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:02:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:02:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:02:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:02:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:02:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:02:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:02:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-15 04:02:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-15 04:02:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-15 04:02:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-15 04:02:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-15 04:02:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:34,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:02:34,880 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:02:34,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856542317] [2022-02-15 04:02:34,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [856542317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:02:34,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:02:34,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [] total 104 [2022-02-15 04:02:34,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025733749] [2022-02-15 04:02:34,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:02:34,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-02-15 04:02:34,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:02:34,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-02-15 04:02:34,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2607, Invalid=8105, Unknown=0, NotChecked=0, Total=10712 [2022-02-15 04:02:34,882 INFO L87 Difference]: Start difference. First operand 507 states and 508 transitions. Second operand has 104 states, 104 states have (on average 2.480769230769231) internal successors, (258), 103 states have internal predecessors, (258), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 04:02:38,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:02:38,438 INFO L93 Difference]: Finished difference Result 718 states and 769 transitions. [2022-02-15 04:02:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-15 04:02:38,439 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 2.480769230769231) internal successors, (258), 103 states have internal predecessors, (258), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 504 [2022-02-15 04:02:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:02:38,441 INFO L225 Difference]: With dead ends: 718 [2022-02-15 04:02:38,441 INFO L226 Difference]: Without dead ends: 510 [2022-02-15 04:02:38,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10093 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=8015, Invalid=33805, Unknown=0, NotChecked=0, Total=41820 [2022-02-15 04:02:38,444 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 130 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:02:38,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 173 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-15 04:02:38,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-02-15 04:02:38,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 509. [2022-02-15 04:02:38,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 405 states have (on average 1.0049382716049382) internal successors, (407), 406 states have internal predecessors, (407), 52 states have call successors, (52), 52 states have call predecessors, (52), 51 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 04:02:38,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 510 transitions. [2022-02-15 04:02:38,702 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 510 transitions. Word has length 504 [2022-02-15 04:02:38,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:02:38,702 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 510 transitions. [2022-02-15 04:02:38,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 2.480769230769231) internal successors, (258), 103 states have internal predecessors, (258), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 04:02:38,702 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 510 transitions. [2022-02-15 04:02:38,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-02-15 04:02:38,705 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:02:38,705 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:02:38,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-15 04:02:38,705 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:02:38,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:02:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1572269988, now seen corresponding path program 98 times [2022-02-15 04:02:38,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:02:38,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213532673] [2022-02-15 04:02:38,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:02:38,707 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:02:38,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:02:38,710 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:02:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:02:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 04:02:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 04:02:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 04:02:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:02:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:02:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:02:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:02:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:02:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:02:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:02:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:02:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:02:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:02:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:02:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:02:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:02:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:02:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:02:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:02:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:02:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:02:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:02:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:02:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:02:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:02:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:02:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:02:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:02:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:02:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:02:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:02:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:02:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:02:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:02:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:02:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:02:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:02:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:02:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:02:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:02:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:02:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:02:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:02:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:02:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-15 04:02:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-15 04:02:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-15 04:02:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-15 04:02:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-15 04:02:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:02:42,100 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:02:42,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213532673] [2022-02-15 04:02:42,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1213532673] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:02:42,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:02:42,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [108] imperfect sequences [] total 108 [2022-02-15 04:02:42,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963547103] [2022-02-15 04:02:42,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:02:42,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-02-15 04:02:42,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:02:42,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-02-15 04:02:42,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=11340, Unknown=0, NotChecked=0, Total=11556 [2022-02-15 04:02:42,104 INFO L87 Difference]: Start difference. First operand 509 states and 510 transitions. Second operand has 108 states, 107 states have (on average 2.4299065420560746) internal successors, (260), 106 states have internal predecessors, (260), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 04:02:56,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:02:56,041 INFO L93 Difference]: Finished difference Result 522 states and 523 transitions. [2022-02-15 04:02:56,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-15 04:02:56,041 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 107 states have (on average 2.4299065420560746) internal successors, (260), 106 states have internal predecessors, (260), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 506 [2022-02-15 04:02:56,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:02:56,049 INFO L225 Difference]: With dead ends: 522 [2022-02-15 04:02:56,049 INFO L226 Difference]: Without dead ends: 520 [2022-02-15 04:02:56,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5829 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=751, Invalid=44831, Unknown=0, NotChecked=0, Total=45582 [2022-02-15 04:02:56,052 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 275 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 38009 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 38319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 38009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:02:56,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 590 Invalid, 38319 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [310 Valid, 38009 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-02-15 04:02:56,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-02-15 04:02:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2022-02-15 04:02:56,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.0048661800486618) internal successors, (413), 412 states have internal predecessors, (413), 53 states have call successors, (53), 53 states have call predecessors, (53), 52 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 04:02:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 518 transitions. [2022-02-15 04:02:56,292 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 518 transitions. Word has length 506 [2022-02-15 04:02:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:02:56,293 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 518 transitions. [2022-02-15 04:02:56,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 107 states have (on average 2.4299065420560746) internal successors, (260), 106 states have internal predecessors, (260), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 04:02:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 518 transitions. [2022-02-15 04:02:56,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-02-15 04:02:56,300 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:02:56,301 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:02:56,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-15 04:02:56,301 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:02:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:02:56,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1684311682, now seen corresponding path program 99 times [2022-02-15 04:02:56,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:02:56,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827943222] [2022-02-15 04:02:56,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:02:56,302 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:02:56,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:02:56,305 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:02:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:02:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-15 04:02:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 04:02:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 04:02:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:02:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:02:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:02:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:02:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:02:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:02:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:02:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:02:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:02:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:02:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:02:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:02:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:02:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:02:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:02:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:02:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:02:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:02:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:02:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:02:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:02:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:02:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:02:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:02:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:02:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:02:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:02:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:02:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:02:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:02:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:02:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:02:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:02:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:02:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:02:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:02:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:02:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:02:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:02:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:02:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:02:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-15 04:02:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-15 04:02:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-15 04:02:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-15 04:02:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-15 04:02:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-15 04:02:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:02:58,315 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:02:58,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827943222] [2022-02-15 04:02:58,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1827943222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:02:58,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:02:58,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [106] imperfect sequences [] total 106 [2022-02-15 04:02:58,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997275275] [2022-02-15 04:02:58,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:02:58,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-02-15 04:02:58,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:02:58,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-02-15 04:02:58,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2710, Invalid=8420, Unknown=0, NotChecked=0, Total=11130 [2022-02-15 04:02:58,319 INFO L87 Difference]: Start difference. First operand 517 states and 518 transitions. Second operand has 106 states, 106 states have (on average 2.481132075471698) internal successors, (263), 105 states have internal predecessors, (263), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 04:03:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:03:01,619 INFO L93 Difference]: Finished difference Result 732 states and 784 transitions. [2022-02-15 04:03:01,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-02-15 04:03:01,620 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 2.481132075471698) internal successors, (263), 105 states have internal predecessors, (263), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Word has length 514 [2022-02-15 04:03:01,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:03:01,623 INFO L225 Difference]: With dead ends: 732 [2022-02-15 04:03:01,623 INFO L226 Difference]: Without dead ends: 520 [2022-02-15 04:03:01,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10499 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=8328, Invalid=35144, Unknown=0, NotChecked=0, Total=43472 [2022-02-15 04:03:01,625 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 132 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 04:03:01,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 165 Invalid, 2467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-15 04:03:01,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-02-15 04:03:01,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 519. [2022-02-15 04:03:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 413 states have (on average 1.0048426150121066) internal successors, (415), 414 states have internal predecessors, (415), 53 states have call successors, (53), 53 states have call predecessors, (53), 52 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 04:03:01,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 520 transitions. [2022-02-15 04:03:01,878 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 520 transitions. Word has length 514 [2022-02-15 04:03:01,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:03:01,878 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 520 transitions. [2022-02-15 04:03:01,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 2.481132075471698) internal successors, (263), 105 states have internal predecessors, (263), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 04:03:01,878 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 520 transitions. [2022-02-15 04:03:01,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-02-15 04:03:01,881 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:03:01,881 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:03:01,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-15 04:03:01,881 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:03:01,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:03:01,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1594960732, now seen corresponding path program 100 times [2022-02-15 04:03:01,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:03:01,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061964834] [2022-02-15 04:03:01,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:03:01,884 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:03:01,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:03:01,888 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:03:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:03:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 04:03:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 04:03:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:03:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:03:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:03:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:03:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:03:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:03:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:03:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:03:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:03:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:03:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:03:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:03:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:03:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:03:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:03:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:03:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:03:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:03:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:03:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:03:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:03:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:03:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:03:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:03:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:03:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:03:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:03:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:03:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:03:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:03:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:03:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:03:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:03:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:03:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:03:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:03:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:03:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:03:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:03:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-15 04:03:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-15 04:03:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-15 04:03:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-15 04:03:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-15 04:03:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-15 04:03:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-15 04:03:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-15 04:03:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-15 04:03:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:06,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:03:06,695 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:03:06,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061964834] [2022-02-15 04:03:06,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2061964834] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:03:06,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:03:06,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [110] imperfect sequences [] total 110 [2022-02-15 04:03:06,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729304941] [2022-02-15 04:03:06,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:03:06,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-02-15 04:03:06,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:03:06,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-02-15 04:03:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=11770, Unknown=0, NotChecked=0, Total=11990 [2022-02-15 04:03:06,697 INFO L87 Difference]: Start difference. First operand 519 states and 520 transitions. Second operand has 110 states, 109 states have (on average 2.4311926605504586) internal successors, (265), 108 states have internal predecessors, (265), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 04:03:22,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:03:22,745 INFO L93 Difference]: Finished difference Result 532 states and 533 transitions. [2022-02-15 04:03:22,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-15 04:03:22,746 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 109 states have (on average 2.4311926605504586) internal successors, (265), 108 states have internal predecessors, (265), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Word has length 516 [2022-02-15 04:03:22,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:03:22,747 INFO L225 Difference]: With dead ends: 532 [2022-02-15 04:03:22,747 INFO L226 Difference]: Without dead ends: 530 [2022-02-15 04:03:22,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6047 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=765, Invalid=46541, Unknown=0, NotChecked=0, Total=47306 [2022-02-15 04:03:22,750 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 280 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 38949 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 39265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 38949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:03:22,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 593 Invalid, 39265 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [316 Valid, 38949 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-02-15 04:03:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-02-15 04:03:22,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 527. [2022-02-15 04:03:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 419 states have (on average 1.0047732696897376) internal successors, (421), 420 states have internal predecessors, (421), 54 states have call successors, (54), 54 states have call predecessors, (54), 53 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 04:03:22,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 528 transitions. [2022-02-15 04:03:22,985 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 528 transitions. Word has length 516 [2022-02-15 04:03:22,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:03:22,985 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 528 transitions. [2022-02-15 04:03:22,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 109 states have (on average 2.4311926605504586) internal successors, (265), 108 states have internal predecessors, (265), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 04:03:22,986 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 528 transitions. [2022-02-15 04:03:22,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-02-15 04:03:22,988 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:03:22,988 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:03:22,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-15 04:03:22,988 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:03:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:03:22,988 INFO L85 PathProgramCache]: Analyzing trace with hash -105220810, now seen corresponding path program 101 times [2022-02-15 04:03:22,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:03:22,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331369588] [2022-02-15 04:03:22,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:03:22,990 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:03:22,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:03:22,993 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:03:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:03:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-15 04:03:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 04:03:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:03:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:03:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:03:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:03:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:03:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:03:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:03:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:03:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:03:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:03:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:03:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:03:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:03:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:03:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:03:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:03:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:03:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:03:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:03:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:03:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:03:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:03:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:03:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:03:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:03:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:03:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:03:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:03:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:03:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:03:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:03:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:03:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:03:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:03:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:03:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:03:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:03:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:03:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:03:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-15 04:03:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-15 04:03:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-15 04:03:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-15 04:03:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-15 04:03:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-15 04:03:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-15 04:03:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-15 04:03:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-15 04:03:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-15 04:03:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:25,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:03:25,414 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:03:25,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331369588] [2022-02-15 04:03:25,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [331369588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:03:25,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:03:25,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [108] imperfect sequences [] total 108 [2022-02-15 04:03:25,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666432690] [2022-02-15 04:03:25,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:03:25,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-02-15 04:03:25,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:03:25,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-02-15 04:03:25,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2815, Invalid=8741, Unknown=0, NotChecked=0, Total=11556 [2022-02-15 04:03:25,416 INFO L87 Difference]: Start difference. First operand 527 states and 528 transitions. Second operand has 108 states, 108 states have (on average 2.4814814814814814) internal successors, (268), 107 states have internal predecessors, (268), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 04:03:29,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:03:29,570 INFO L93 Difference]: Finished difference Result 746 states and 799 transitions. [2022-02-15 04:03:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-02-15 04:03:29,571 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 108 states have (on average 2.4814814814814814) internal successors, (268), 107 states have internal predecessors, (268), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 524 [2022-02-15 04:03:29,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:03:29,572 INFO L225 Difference]: With dead ends: 746 [2022-02-15 04:03:29,572 INFO L226 Difference]: Without dead ends: 530 [2022-02-15 04:03:29,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10913 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=8647, Invalid=36509, Unknown=0, NotChecked=0, Total=45156 [2022-02-15 04:03:29,577 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 134 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 04:03:29,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 187 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 04:03:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-02-15 04:03:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 529. [2022-02-15 04:03:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 421 states have (on average 1.004750593824228) internal successors, (423), 422 states have internal predecessors, (423), 54 states have call successors, (54), 54 states have call predecessors, (54), 53 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 04:03:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 530 transitions. [2022-02-15 04:03:29,801 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 530 transitions. Word has length 524 [2022-02-15 04:03:29,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:03:29,802 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 530 transitions. [2022-02-15 04:03:29,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 108 states have (on average 2.4814814814814814) internal successors, (268), 107 states have internal predecessors, (268), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 04:03:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 530 transitions. [2022-02-15 04:03:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-02-15 04:03:29,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:03:29,804 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:03:29,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-15 04:03:29,804 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:03:29,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:03:29,805 INFO L85 PathProgramCache]: Analyzing trace with hash 309326228, now seen corresponding path program 102 times [2022-02-15 04:03:29,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:03:29,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914408057] [2022-02-15 04:03:29,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:03:29,806 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:03:29,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:03:29,809 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:03:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:03:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 04:03:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 04:03:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:03:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:03:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:03:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:03:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:03:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:03:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:03:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:03:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:03:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:03:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:03:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:03:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:03:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:03:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:03:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:03:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:03:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:03:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:03:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:03:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:03:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:03:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:03:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:03:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:03:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:03:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:03:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:03:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:03:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:03:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:03:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:03:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:03:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:03:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:03:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:03:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:03:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:03:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:03:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:03:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-15 04:03:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-15 04:03:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-15 04:03:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-15 04:03:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-15 04:03:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-15 04:03:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-15 04:03:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-15 04:03:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-15 04:03:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:34,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:03:34,985 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:03:34,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914408057] [2022-02-15 04:03:34,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1914408057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:03:34,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:03:34,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [112] imperfect sequences [] total 112 [2022-02-15 04:03:34,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552361798] [2022-02-15 04:03:34,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:03:34,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-15 04:03:34,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:03:34,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-15 04:03:34,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=12208, Unknown=0, NotChecked=0, Total=12432 [2022-02-15 04:03:34,988 INFO L87 Difference]: Start difference. First operand 529 states and 530 transitions. Second operand has 112 states, 111 states have (on average 2.4324324324324325) internal successors, (270), 110 states have internal predecessors, (270), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 04:03:50,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:03:50,243 INFO L93 Difference]: Finished difference Result 542 states and 543 transitions. [2022-02-15 04:03:50,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-15 04:03:50,244 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 111 states have (on average 2.4324324324324325) internal successors, (270), 110 states have internal predecessors, (270), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 526 [2022-02-15 04:03:50,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:03:50,245 INFO L225 Difference]: With dead ends: 542 [2022-02-15 04:03:50,245 INFO L226 Difference]: Without dead ends: 540 [2022-02-15 04:03:50,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6269 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=779, Invalid=48283, Unknown=0, NotChecked=0, Total=49062 [2022-02-15 04:03:50,255 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 285 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 40983 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 41305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 40983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-02-15 04:03:50,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 612 Invalid, 41305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [322 Valid, 40983 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-02-15 04:03:50,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-02-15 04:03:50,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 537. [2022-02-15 04:03:50,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 427 states have (on average 1.0046838407494145) internal successors, (429), 428 states have internal predecessors, (429), 55 states have call successors, (55), 55 states have call predecessors, (55), 54 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 04:03:50,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 538 transitions. [2022-02-15 04:03:50,500 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 538 transitions. Word has length 526 [2022-02-15 04:03:50,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:03:50,501 INFO L470 AbstractCegarLoop]: Abstraction has 537 states and 538 transitions. [2022-02-15 04:03:50,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 111 states have (on average 2.4324324324324325) internal successors, (270), 110 states have internal predecessors, (270), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 04:03:50,501 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 538 transitions. [2022-02-15 04:03:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-02-15 04:03:50,503 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:03:50,503 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:03:50,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-15 04:03:50,503 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:03:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:03:50,504 INFO L85 PathProgramCache]: Analyzing trace with hash -873757842, now seen corresponding path program 103 times [2022-02-15 04:03:50,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:03:50,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671908462] [2022-02-15 04:03:50,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:03:50,505 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:03:50,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:03:50,508 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:03:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:03:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-15 04:03:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 04:03:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:03:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:03:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:03:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:03:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:03:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:03:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:03:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:03:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:03:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:03:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:03:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:03:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:03:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:03:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:03:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:03:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:03:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:03:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:03:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:03:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:03:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:03:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:03:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:03:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:03:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:03:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:03:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:03:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:03:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:03:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:03:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:03:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:03:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:03:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:03:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:03:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:03:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:03:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:03:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:03:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-15 04:03:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-15 04:03:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-15 04:03:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-15 04:03:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-15 04:03:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-15 04:03:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-15 04:03:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-15 04:03:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-15 04:03:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-15 04:03:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:03:52,709 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:03:52,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671908462] [2022-02-15 04:03:52,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [671908462] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:03:52,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:03:52,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [110] imperfect sequences [] total 110 [2022-02-15 04:03:52,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288112446] [2022-02-15 04:03:52,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:03:52,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-02-15 04:03:52,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:03:52,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-02-15 04:03:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2922, Invalid=9068, Unknown=0, NotChecked=0, Total=11990 [2022-02-15 04:03:52,716 INFO L87 Difference]: Start difference. First operand 537 states and 538 transitions. Second operand has 110 states, 110 states have (on average 2.481818181818182) internal successors, (273), 109 states have internal predecessors, (273), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 04:03:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:03:57,262 INFO L93 Difference]: Finished difference Result 760 states and 814 transitions. [2022-02-15 04:03:57,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-02-15 04:03:57,262 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 110 states have (on average 2.481818181818182) internal successors, (273), 109 states have internal predecessors, (273), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 534 [2022-02-15 04:03:57,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:03:57,264 INFO L225 Difference]: With dead ends: 760 [2022-02-15 04:03:57,264 INFO L226 Difference]: Without dead ends: 540 [2022-02-15 04:03:57,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11335 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=8972, Invalid=37900, Unknown=0, NotChecked=0, Total=46872 [2022-02-15 04:03:57,266 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 136 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3009 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 3231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 3009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:03:57,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 179 Invalid, 3231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 3009 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 04:03:57,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-02-15 04:03:57,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539. [2022-02-15 04:03:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 429 states have (on average 1.0046620046620047) internal successors, (431), 430 states have internal predecessors, (431), 55 states have call successors, (55), 55 states have call predecessors, (55), 54 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 04:03:57,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 540 transitions. [2022-02-15 04:03:57,514 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 540 transitions. Word has length 534 [2022-02-15 04:03:57,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:03:57,514 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 540 transitions. [2022-02-15 04:03:57,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.481818181818182) internal successors, (273), 109 states have internal predecessors, (273), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 04:03:57,514 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 540 transitions. [2022-02-15 04:03:57,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2022-02-15 04:03:57,517 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:03:57,517 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 53, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:03:57,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-15 04:03:57,517 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:03:57,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:03:57,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1192254900, now seen corresponding path program 104 times [2022-02-15 04:03:57,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:03:57,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061208568] [2022-02-15 04:03:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:03:57,519 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:03:57,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:03:57,522 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:03:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:04:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 04:04:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 04:04:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:04:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:04:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:04:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:04:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:04:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:04:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:04:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:04:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:04:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:04:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:04:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:04:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:04:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:04:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:04:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:04:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:04:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:04:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:04:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:04:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:04:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:04:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:04:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:04:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:04:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:04:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:04:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:04:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:04:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:04:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:04:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:04:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:04:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:04:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:04:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:04:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:04:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:04:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:04:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:04:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:04:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-15 04:04:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-15 04:04:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-15 04:04:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-15 04:04:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-15 04:04:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-15 04:04:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-15 04:04:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-15 04:04:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-15 04:04:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:04:02,412 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:04:02,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061208568] [2022-02-15 04:04:02,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1061208568] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:04:02,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:04:02,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [114] imperfect sequences [] total 114 [2022-02-15 04:04:02,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840838400] [2022-02-15 04:04:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:04:02,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-02-15 04:04:02,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:04:02,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-02-15 04:04:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=12654, Unknown=0, NotChecked=0, Total=12882 [2022-02-15 04:04:02,415 INFO L87 Difference]: Start difference. First operand 539 states and 540 transitions. Second operand has 114 states, 113 states have (on average 2.433628318584071) internal successors, (275), 112 states have internal predecessors, (275), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 04:04:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:04:18,480 INFO L93 Difference]: Finished difference Result 552 states and 553 transitions. [2022-02-15 04:04:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-15 04:04:18,480 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 113 states have (on average 2.433628318584071) internal successors, (275), 112 states have internal predecessors, (275), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 536 [2022-02-15 04:04:18,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:04:18,482 INFO L225 Difference]: With dead ends: 552 [2022-02-15 04:04:18,482 INFO L226 Difference]: Without dead ends: 550 [2022-02-15 04:04:18,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6495 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=793, Invalid=50057, Unknown=0, NotChecked=0, Total=50850 [2022-02-15 04:04:18,485 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 290 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 42127 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 42455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 42127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:04:18,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 619 Invalid, 42455 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [328 Valid, 42127 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-02-15 04:04:18,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-02-15 04:04:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 547. [2022-02-15 04:04:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 435 states have (on average 1.0045977011494254) internal successors, (437), 436 states have internal predecessors, (437), 56 states have call successors, (56), 56 states have call predecessors, (56), 55 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 04:04:18,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 548 transitions. [2022-02-15 04:04:18,823 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 548 transitions. Word has length 536 [2022-02-15 04:04:18,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:04:18,823 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 548 transitions. [2022-02-15 04:04:18,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 113 states have (on average 2.433628318584071) internal successors, (275), 112 states have internal predecessors, (275), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 04:04:18,823 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 548 transitions. [2022-02-15 04:04:18,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-02-15 04:04:18,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:04:18,826 INFO L514 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:04:18,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-15 04:04:18,826 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:04:18,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:04:18,826 INFO L85 PathProgramCache]: Analyzing trace with hash 552270886, now seen corresponding path program 105 times [2022-02-15 04:04:18,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:04:18,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609231192] [2022-02-15 04:04:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:04:18,828 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:04:18,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:04:18,831 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:04:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:04:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-15 04:04:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 04:04:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:04:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:04:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:04:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:04:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:04:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:04:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:04:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:04:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:04:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:04:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:04:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:04:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:04:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:04:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:04:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:04:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:04:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:04:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:04:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:04:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:04:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:04:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:04:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:04:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:04:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:04:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:04:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:04:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:04:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:04:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:04:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:04:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:04:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:04:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:04:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:04:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:04:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:04:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:04:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:04:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:04:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-15 04:04:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-15 04:04:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-15 04:04:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-15 04:04:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-15 04:04:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-15 04:04:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-15 04:04:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-15 04:04:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-15 04:04:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-15 04:04:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:04:21,204 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:04:21,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609231192] [2022-02-15 04:04:21,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [609231192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:04:21,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:04:21,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [112] imperfect sequences [] total 112 [2022-02-15 04:04:21,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232099215] [2022-02-15 04:04:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:04:21,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-15 04:04:21,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:04:21,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-15 04:04:21,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3031, Invalid=9401, Unknown=0, NotChecked=0, Total=12432 [2022-02-15 04:04:21,207 INFO L87 Difference]: Start difference. First operand 547 states and 548 transitions. Second operand has 112 states, 112 states have (on average 2.482142857142857) internal successors, (278), 111 states have internal predecessors, (278), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 04:04:25,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:04:25,767 INFO L93 Difference]: Finished difference Result 774 states and 829 transitions. [2022-02-15 04:04:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-15 04:04:25,768 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 112 states have (on average 2.482142857142857) internal successors, (278), 111 states have internal predecessors, (278), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Word has length 544 [2022-02-15 04:04:25,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:04:25,770 INFO L225 Difference]: With dead ends: 774 [2022-02-15 04:04:25,770 INFO L226 Difference]: Without dead ends: 550 [2022-02-15 04:04:25,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11765 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=9303, Invalid=39317, Unknown=0, NotChecked=0, Total=48620 [2022-02-15 04:04:25,773 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 138 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:04:25,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 171 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 04:04:25,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-02-15 04:04:26,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 549. [2022-02-15 04:04:26,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 437 states have (on average 1.0045766590389016) internal successors, (439), 438 states have internal predecessors, (439), 56 states have call successors, (56), 56 states have call predecessors, (56), 55 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 04:04:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 550 transitions. [2022-02-15 04:04:26,135 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 550 transitions. Word has length 544 [2022-02-15 04:04:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:04:26,135 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 550 transitions. [2022-02-15 04:04:26,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 2.482142857142857) internal successors, (278), 111 states have internal predecessors, (278), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 04:04:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 550 transitions. [2022-02-15 04:04:26,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-02-15 04:04:26,139 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:04:26,139 INFO L514 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 54, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:04:26,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-15 04:04:26,139 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:04:26,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:04:26,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2076926588, now seen corresponding path program 106 times [2022-02-15 04:04:26,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:04:26,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569551966] [2022-02-15 04:04:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:04:26,141 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:04:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:04:26,145 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:04:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:04:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 04:04:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 04:04:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:04:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:04:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:04:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:04:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:04:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:04:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:04:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:04:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:04:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:04:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:04:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:04:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:04:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:04:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:04:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:04:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:04:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:04:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:04:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:04:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:04:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:04:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:04:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:04:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:04:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:04:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:04:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:04:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:04:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:04:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:04:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:04:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:04:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:04:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:04:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:04:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:04:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:04:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:04:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:04:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:04:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-15 04:04:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-15 04:04:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-15 04:04:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-15 04:04:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-15 04:04:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-15 04:04:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-15 04:04:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-15 04:04:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-15 04:04:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-15 04:04:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:04:30,794 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:04:30,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569551966] [2022-02-15 04:04:30,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [569551966] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:04:30,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:04:30,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [116] imperfect sequences [] total 116 [2022-02-15 04:04:30,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359301814] [2022-02-15 04:04:30,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:04:30,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-02-15 04:04:30,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:04:30,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-02-15 04:04:30,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=13108, Unknown=0, NotChecked=0, Total=13340 [2022-02-15 04:04:30,796 INFO L87 Difference]: Start difference. First operand 549 states and 550 transitions. Second operand has 116 states, 115 states have (on average 2.4347826086956523) internal successors, (280), 114 states have internal predecessors, (280), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 04:04:47,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:04:47,386 INFO L93 Difference]: Finished difference Result 562 states and 563 transitions. [2022-02-15 04:04:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-15 04:04:47,386 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 115 states have (on average 2.4347826086956523) internal successors, (280), 114 states have internal predecessors, (280), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Word has length 546 [2022-02-15 04:04:47,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:04:47,388 INFO L225 Difference]: With dead ends: 562 [2022-02-15 04:04:47,388 INFO L226 Difference]: Without dead ends: 560 [2022-02-15 04:04:47,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6725 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=807, Invalid=51863, Unknown=0, NotChecked=0, Total=52670 [2022-02-15 04:04:47,392 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 295 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 43506 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 43840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 43506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:04:47,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 626 Invalid, 43840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [334 Valid, 43506 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-02-15 04:04:47,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-02-15 04:04:47,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2022-02-15 04:04:47,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 443 states have (on average 1.0045146726862302) internal successors, (445), 444 states have internal predecessors, (445), 57 states have call successors, (57), 57 states have call predecessors, (57), 56 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 04:04:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 558 transitions. [2022-02-15 04:04:47,784 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 558 transitions. Word has length 546 [2022-02-15 04:04:47,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:04:47,784 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 558 transitions. [2022-02-15 04:04:47,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 115 states have (on average 2.4347826086956523) internal successors, (280), 114 states have internal predecessors, (280), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 04:04:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 558 transitions. [2022-02-15 04:04:47,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-02-15 04:04:47,788 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:04:47,788 INFO L514 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:04:47,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-02-15 04:04:47,788 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:04:47,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:04:47,788 INFO L85 PathProgramCache]: Analyzing trace with hash -268615842, now seen corresponding path program 107 times [2022-02-15 04:04:47,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:04:47,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761987198] [2022-02-15 04:04:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:04:47,789 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:04:47,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:04:47,794 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:04:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:04:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-15 04:04:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 04:04:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:04:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:04:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:04:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:04:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:04:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:04:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:04:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:04:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:04:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:04:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:04:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:04:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:04:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:04:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:04:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:04:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:04:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:04:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:04:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:04:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:04:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:04:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:04:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:04:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:04:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:04:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:04:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:04:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:04:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:04:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:04:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:04:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:04:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:04:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:04:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:04:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:04:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:04:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:04:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:04:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:04:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-15 04:04:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-15 04:04:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-15 04:04:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-15 04:04:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-15 04:04:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-15 04:04:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-15 04:04:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-15 04:04:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-15 04:04:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-15 04:04:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-15 04:04:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:04:50,121 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:04:50,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761987198] [2022-02-15 04:04:50,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1761987198] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:04:50,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:04:50,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [114] imperfect sequences [] total 114 [2022-02-15 04:04:50,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384137431] [2022-02-15 04:04:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:04:50,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-02-15 04:04:50,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:04:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-02-15 04:04:50,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3142, Invalid=9740, Unknown=0, NotChecked=0, Total=12882 [2022-02-15 04:04:50,124 INFO L87 Difference]: Start difference. First operand 557 states and 558 transitions. Second operand has 114 states, 114 states have (on average 2.482456140350877) internal successors, (283), 113 states have internal predecessors, (283), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 04:04:54,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:04:54,626 INFO L93 Difference]: Finished difference Result 788 states and 844 transitions. [2022-02-15 04:04:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-02-15 04:04:54,626 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 114 states have (on average 2.482456140350877) internal successors, (283), 113 states have internal predecessors, (283), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 554 [2022-02-15 04:04:54,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:04:54,628 INFO L225 Difference]: With dead ends: 788 [2022-02-15 04:04:54,628 INFO L226 Difference]: Without dead ends: 560 [2022-02-15 04:04:54,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12203 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=9640, Invalid=40760, Unknown=0, NotChecked=0, Total=50400 [2022-02-15 04:04:54,635 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 140 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 3217 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 3447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 3217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:04:54,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 188 Invalid, 3447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 3217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 04:04:54,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-02-15 04:04:54,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2022-02-15 04:04:54,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 445 states have (on average 1.0044943820224719) internal successors, (447), 446 states have internal predecessors, (447), 57 states have call successors, (57), 57 states have call predecessors, (57), 56 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 04:04:54,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 560 transitions. [2022-02-15 04:04:54,888 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 560 transitions. Word has length 554 [2022-02-15 04:04:54,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:04:54,888 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 560 transitions. [2022-02-15 04:04:54,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 114 states have (on average 2.482456140350877) internal successors, (283), 113 states have internal predecessors, (283), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 04:04:54,889 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 560 transitions. [2022-02-15 04:04:54,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-02-15 04:04:54,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:04:54,891 INFO L514 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:04:54,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-02-15 04:04:54,892 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:04:54,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:04:54,892 INFO L85 PathProgramCache]: Analyzing trace with hash 208356156, now seen corresponding path program 108 times [2022-02-15 04:04:54,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:04:54,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254834742] [2022-02-15 04:04:54,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:04:54,902 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:04:54,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:04:54,906 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:04:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:04:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 04:04:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:04:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:04:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:04:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:04:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:04:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:04:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:04:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:04:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:04:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:04:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:04:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:04:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:04:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:04:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:04:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:04:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:04:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:04:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:04:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:04:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:04:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:04:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:04:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:04:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:04:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:04:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:04:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:04:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:04:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:04:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:04:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:04:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:04:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:04:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:04:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:04:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:04:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:04:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:04:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-15 04:04:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-15 04:04:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-15 04:04:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-15 04:04:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-15 04:04:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-15 04:04:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-15 04:04:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-15 04:04:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-15 04:04:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-15 04:04:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-02-15 04:04:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-02-15 04:04:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-02-15 04:04:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-02-15 04:04:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:04:59,336 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:04:59,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254834742] [2022-02-15 04:04:59,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1254834742] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:04:59,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:04:59,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [118] imperfect sequences [] total 118 [2022-02-15 04:04:59,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969782532] [2022-02-15 04:04:59,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:04:59,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-02-15 04:04:59,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:04:59,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-02-15 04:04:59,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=13570, Unknown=0, NotChecked=0, Total=13806 [2022-02-15 04:04:59,339 INFO L87 Difference]: Start difference. First operand 559 states and 560 transitions. Second operand has 118 states, 117 states have (on average 2.4358974358974357) internal successors, (285), 116 states have internal predecessors, (285), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 04:05:14,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:05:14,875 INFO L93 Difference]: Finished difference Result 572 states and 573 transitions. [2022-02-15 04:05:14,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-15 04:05:14,875 INFO L78 Accepts]: Start accepts. Automaton has has 118 states, 117 states have (on average 2.4358974358974357) internal successors, (285), 116 states have internal predecessors, (285), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 556 [2022-02-15 04:05:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:05:14,877 INFO L225 Difference]: With dead ends: 572 [2022-02-15 04:05:14,877 INFO L226 Difference]: Without dead ends: 570 [2022-02-15 04:05:14,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6959 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=821, Invalid=53701, Unknown=0, NotChecked=0, Total=54522 [2022-02-15 04:05:14,881 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 300 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 45256 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 45596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 45256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-02-15 04:05:14,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 641 Invalid, 45596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [340 Valid, 45256 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-02-15 04:05:14,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-02-15 04:05:15,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 567. [2022-02-15 04:05:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 451 states have (on average 1.0044345898004434) internal successors, (453), 452 states have internal predecessors, (453), 58 states have call successors, (58), 58 states have call predecessors, (58), 57 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 04:05:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 568 transitions. [2022-02-15 04:05:15,265 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 568 transitions. Word has length 556 [2022-02-15 04:05:15,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:05:15,265 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 568 transitions. [2022-02-15 04:05:15,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 117 states have (on average 2.4358974358974357) internal successors, (285), 116 states have internal predecessors, (285), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 04:05:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 568 transitions. [2022-02-15 04:05:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2022-02-15 04:05:15,269 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:05:15,269 INFO L514 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:05:15,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-02-15 04:05:15,269 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:05:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:05:15,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1896960746, now seen corresponding path program 109 times [2022-02-15 04:05:15,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:05:15,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051548498] [2022-02-15 04:05:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:05:15,271 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:05:15,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:05:15,276 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:05:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:05:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-15 04:05:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:05:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:05:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:05:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:05:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:05:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:05:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:05:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:05:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:05:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:05:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:05:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:05:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:05:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:05:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:05:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:05:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:05:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:05:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:05:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:05:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:05:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:05:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:05:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:05:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:05:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:05:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:05:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:05:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:05:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:05:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:05:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:05:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:05:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:05:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:05:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:05:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:05:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:05:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:05:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-15 04:05:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-15 04:05:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-15 04:05:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-15 04:05:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-15 04:05:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-15 04:05:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-15 04:05:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-15 04:05:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-15 04:05:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-15 04:05:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-02-15 04:05:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-02-15 04:05:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-02-15 04:05:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-02-15 04:05:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-02-15 04:05:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:05:18,450 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:05:18,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051548498] [2022-02-15 04:05:18,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1051548498] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:05:18,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:05:18,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [116] imperfect sequences [] total 116 [2022-02-15 04:05:18,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218839048] [2022-02-15 04:05:18,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:05:18,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-02-15 04:05:18,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:05:18,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-02-15 04:05:18,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3255, Invalid=10085, Unknown=0, NotChecked=0, Total=13340 [2022-02-15 04:05:18,454 INFO L87 Difference]: Start difference. First operand 567 states and 568 transitions. Second operand has 116 states, 116 states have (on average 2.4827586206896552) internal successors, (288), 115 states have internal predecessors, (288), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 04:05:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:05:23,312 INFO L93 Difference]: Finished difference Result 802 states and 859 transitions. [2022-02-15 04:05:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-02-15 04:05:23,312 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 116 states have (on average 2.4827586206896552) internal successors, (288), 115 states have internal predecessors, (288), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Word has length 564 [2022-02-15 04:05:23,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:05:23,315 INFO L225 Difference]: With dead ends: 802 [2022-02-15 04:05:23,315 INFO L226 Difference]: Without dead ends: 570 [2022-02-15 04:05:23,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12649 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=9983, Invalid=42229, Unknown=0, NotChecked=0, Total=52212 [2022-02-15 04:05:23,318 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 142 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 3207 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 3207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:05:23,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 180 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 3207 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-15 04:05:23,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-02-15 04:05:23,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 569. [2022-02-15 04:05:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 453 states have (on average 1.0044150110375276) internal successors, (455), 454 states have internal predecessors, (455), 58 states have call successors, (58), 58 states have call predecessors, (58), 57 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 04:05:23,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 570 transitions. [2022-02-15 04:05:23,705 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 570 transitions. Word has length 564 [2022-02-15 04:05:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:05:23,705 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 570 transitions. [2022-02-15 04:05:23,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 2.4827586206896552) internal successors, (288), 115 states have internal predecessors, (288), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 04:05:23,706 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 570 transitions. [2022-02-15 04:05:23,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2022-02-15 04:05:23,709 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:05:23,709 INFO L514 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 56, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:05:23,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-02-15 04:05:23,709 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:05:23,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:05:23,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1179120500, now seen corresponding path program 110 times [2022-02-15 04:05:23,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:05:23,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676234230] [2022-02-15 04:05:23,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:05:23,711 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:05:23,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:05:23,716 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:05:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:05:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 04:05:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:05:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:05:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:05:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:05:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:05:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:05:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:05:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:05:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:05:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:05:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:05:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:05:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:05:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:05:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:05:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:05:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:05:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:05:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:05:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:05:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:05:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:05:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:05:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:05:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:05:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:05:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:05:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:05:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:05:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:05:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:05:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:05:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:05:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:05:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:05:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:05:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:05:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:05:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:05:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:05:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-15 04:05:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-15 04:05:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-15 04:05:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-15 04:05:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-15 04:05:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-15 04:05:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-15 04:05:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-15 04:05:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-15 04:05:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-15 04:05:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-02-15 04:05:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-02-15 04:05:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-02-15 04:05:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-02-15 04:05:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:05:28,935 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:05:28,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676234230] [2022-02-15 04:05:28,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1676234230] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:05:28,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:05:28,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [120] imperfect sequences [] total 120 [2022-02-15 04:05:28,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750486347] [2022-02-15 04:05:28,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:05:28,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-02-15 04:05:28,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:05:28,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-02-15 04:05:28,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=14040, Unknown=0, NotChecked=0, Total=14280 [2022-02-15 04:05:28,937 INFO L87 Difference]: Start difference. First operand 569 states and 570 transitions. Second operand has 120 states, 119 states have (on average 2.436974789915966) internal successors, (290), 118 states have internal predecessors, (290), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 04:05:46,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:05:46,582 INFO L93 Difference]: Finished difference Result 582 states and 583 transitions. [2022-02-15 04:05:46,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-02-15 04:05:46,583 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 119 states have (on average 2.436974789915966) internal successors, (290), 118 states have internal predecessors, (290), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Word has length 566 [2022-02-15 04:05:46,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:05:46,584 INFO L225 Difference]: With dead ends: 582 [2022-02-15 04:05:46,584 INFO L226 Difference]: Without dead ends: 580 [2022-02-15 04:05:46,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7197 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=835, Invalid=55571, Unknown=0, NotChecked=0, Total=56406 [2022-02-15 04:05:46,588 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 305 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 46685 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 47031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 46685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:05:46,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 648 Invalid, 47031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [346 Valid, 46685 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-02-15 04:05:46,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-02-15 04:05:46,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 577. [2022-02-15 04:05:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 459 states have (on average 1.0043572984749456) internal successors, (461), 460 states have internal predecessors, (461), 59 states have call successors, (59), 59 states have call predecessors, (59), 58 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 04:05:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 578 transitions. [2022-02-15 04:05:46,969 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 578 transitions. Word has length 566 [2022-02-15 04:05:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:05:46,970 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 578 transitions. [2022-02-15 04:05:46,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 119 states have (on average 2.436974789915966) internal successors, (290), 118 states have internal predecessors, (290), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 04:05:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 578 transitions. [2022-02-15 04:05:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2022-02-15 04:05:46,973 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:05:46,973 INFO L514 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:05:46,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-02-15 04:05:46,974 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:05:46,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:05:46,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1475107506, now seen corresponding path program 111 times [2022-02-15 04:05:46,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:05:46,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221887664] [2022-02-15 04:05:46,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:05:46,975 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:05:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:05:46,981 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:05:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:05:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-15 04:05:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:05:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:05:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:05:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:05:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:05:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:05:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:05:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:05:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:05:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:05:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:05:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:05:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:05:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:05:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:05:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:05:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:05:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:05:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:05:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:05:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:05:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:05:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:05:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:05:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:05:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:05:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:05:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:05:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:05:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:05:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:05:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:05:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:05:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:05:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:05:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:05:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:05:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:05:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:05:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:05:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-15 04:05:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-15 04:05:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-15 04:05:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-15 04:05:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-15 04:05:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-15 04:05:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-15 04:05:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-15 04:05:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-15 04:05:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-15 04:05:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-02-15 04:05:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-02-15 04:05:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-02-15 04:05:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-02-15 04:05:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2022-02-15 04:05:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:05:49,402 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:05:49,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221887664] [2022-02-15 04:05:49,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [221887664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:05:49,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:05:49,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [118] imperfect sequences [] total 118 [2022-02-15 04:05:49,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242026807] [2022-02-15 04:05:49,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:05:49,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-02-15 04:05:49,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:05:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-02-15 04:05:49,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3370, Invalid=10436, Unknown=0, NotChecked=0, Total=13806 [2022-02-15 04:05:49,406 INFO L87 Difference]: Start difference. First operand 577 states and 578 transitions. Second operand has 118 states, 118 states have (on average 2.483050847457627) internal successors, (293), 117 states have internal predecessors, (293), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 04:05:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:05:53,965 INFO L93 Difference]: Finished difference Result 816 states and 874 transitions. [2022-02-15 04:05:53,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-15 04:05:53,965 INFO L78 Accepts]: Start accepts. Automaton has has 118 states, 118 states have (on average 2.483050847457627) internal successors, (293), 117 states have internal predecessors, (293), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 574 [2022-02-15 04:05:53,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:05:53,968 INFO L225 Difference]: With dead ends: 816 [2022-02-15 04:05:53,968 INFO L226 Difference]: Without dead ends: 580 [2022-02-15 04:05:53,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13103 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=10332, Invalid=43724, Unknown=0, NotChecked=0, Total=54056 [2022-02-15 04:05:53,971 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 3550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 3312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 04:05:53,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 197 Invalid, 3550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 3312 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 04:05:53,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-02-15 04:05:54,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 579. [2022-02-15 04:05:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 461 states have (on average 1.0043383947939262) internal successors, (463), 462 states have internal predecessors, (463), 59 states have call successors, (59), 59 states have call predecessors, (59), 58 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 04:05:54,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 580 transitions. [2022-02-15 04:05:54,373 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 580 transitions. Word has length 574 [2022-02-15 04:05:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:05:54,373 INFO L470 AbstractCegarLoop]: Abstraction has 579 states and 580 transitions. [2022-02-15 04:05:54,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 118 states have (on average 2.483050847457627) internal successors, (293), 117 states have internal predecessors, (293), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 04:05:54,374 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 580 transitions. [2022-02-15 04:05:54,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2022-02-15 04:05:54,377 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:05:54,377 INFO L514 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 57, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:05:54,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-02-15 04:05:54,377 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:05:54,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:05:54,378 INFO L85 PathProgramCache]: Analyzing trace with hash -116978132, now seen corresponding path program 112 times [2022-02-15 04:05:54,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:05:54,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365665828] [2022-02-15 04:05:54,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:05:54,379 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:05:54,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:05:54,384 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:05:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:05:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 04:05:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:05:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:05:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:05:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:05:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:05:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:05:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:05:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:05:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:05:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:05:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:05:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:05:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:05:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:05:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:05:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:05:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:05:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:05:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:05:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:05:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:05:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:05:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:05:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:05:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:05:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:05:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:05:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:05:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:05:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:05:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:05:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:05:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:05:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:05:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:05:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:05:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:05:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:05:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:05:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:05:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:05:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-15 04:05:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-15 04:05:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-15 04:05:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-15 04:05:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-15 04:05:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-15 04:05:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-15 04:05:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-15 04:05:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-15 04:05:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-15 04:05:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-02-15 04:05:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-02-15 04:05:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-02-15 04:05:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-02-15 04:05:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:05:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:05:59,287 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:05:59,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365665828] [2022-02-15 04:05:59,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1365665828] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:05:59,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:05:59,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [122] imperfect sequences [] total 122 [2022-02-15 04:05:59,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989227145] [2022-02-15 04:05:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:05:59,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-02-15 04:05:59,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:05:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-02-15 04:05:59,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=14518, Unknown=0, NotChecked=0, Total=14762 [2022-02-15 04:05:59,290 INFO L87 Difference]: Start difference. First operand 579 states and 580 transitions. Second operand has 122 states, 121 states have (on average 2.43801652892562) internal successors, (295), 120 states have internal predecessors, (295), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 04:06:17,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:06:17,015 INFO L93 Difference]: Finished difference Result 592 states and 593 transitions. [2022-02-15 04:06:17,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-15 04:06:17,015 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 121 states have (on average 2.43801652892562) internal successors, (295), 120 states have internal predecessors, (295), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 576 [2022-02-15 04:06:17,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:06:17,017 INFO L225 Difference]: With dead ends: 592 [2022-02-15 04:06:17,017 INFO L226 Difference]: Without dead ends: 590 [2022-02-15 04:06:17,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7439 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=849, Invalid=57473, Unknown=0, NotChecked=0, Total=58322 [2022-02-15 04:06:17,021 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 310 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 48496 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 48848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 48496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:06:17,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 663 Invalid, 48848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [352 Valid, 48496 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-02-15 04:06:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-02-15 04:06:17,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 587. [2022-02-15 04:06:17,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 467 states have (on average 1.0042826552462527) internal successors, (469), 468 states have internal predecessors, (469), 60 states have call successors, (60), 60 states have call predecessors, (60), 59 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 04:06:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 588 transitions. [2022-02-15 04:06:17,421 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 588 transitions. Word has length 576 [2022-02-15 04:06:17,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:06:17,422 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 588 transitions. [2022-02-15 04:06:17,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 121 states have (on average 2.43801652892562) internal successors, (295), 120 states have internal predecessors, (295), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 04:06:17,423 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 588 transitions. [2022-02-15 04:06:17,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-02-15 04:06:17,426 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:06:17,426 INFO L514 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:06:17,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-02-15 04:06:17,426 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:06:17,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:06:17,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1337423866, now seen corresponding path program 113 times [2022-02-15 04:06:17,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:06:17,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481397712] [2022-02-15 04:06:17,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:06:17,429 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:06:17,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:06:17,434 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:06:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:06:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-15 04:06:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:06:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:06:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:06:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:06:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:06:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:06:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:06:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:06:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:06:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:06:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:06:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:06:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:06:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:06:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:06:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:06:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:06:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:06:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:06:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:06:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:06:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:06:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:06:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:06:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:06:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:06:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:06:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:06:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:06:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:06:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:06:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:06:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:06:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:06:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:06:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:06:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:06:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:06:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:06:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:06:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:06:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-15 04:06:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-15 04:06:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-15 04:06:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-15 04:06:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-15 04:06:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-15 04:06:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-15 04:06:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-15 04:06:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-15 04:06:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-15 04:06:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-02-15 04:06:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-02-15 04:06:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-02-15 04:06:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-02-15 04:06:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-02-15 04:06:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:06:20,248 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:06:20,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481397712] [2022-02-15 04:06:20,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [481397712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:06:20,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:06:20,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [120] imperfect sequences [] total 120 [2022-02-15 04:06:20,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556494440] [2022-02-15 04:06:20,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:06:20,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-02-15 04:06:20,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:06:20,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-02-15 04:06:20,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3487, Invalid=10793, Unknown=0, NotChecked=0, Total=14280 [2022-02-15 04:06:20,252 INFO L87 Difference]: Start difference. First operand 587 states and 588 transitions. Second operand has 120 states, 120 states have (on average 2.4833333333333334) internal successors, (298), 119 states have internal predecessors, (298), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 04:06:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:06:24,465 INFO L93 Difference]: Finished difference Result 830 states and 889 transitions. [2022-02-15 04:06:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-02-15 04:06:24,466 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 120 states have (on average 2.4833333333333334) internal successors, (298), 119 states have internal predecessors, (298), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Word has length 584 [2022-02-15 04:06:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:06:24,467 INFO L225 Difference]: With dead ends: 830 [2022-02-15 04:06:24,467 INFO L226 Difference]: Without dead ends: 590 [2022-02-15 04:06:24,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13565 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=10687, Invalid=45245, Unknown=0, NotChecked=0, Total=55932 [2022-02-15 04:06:24,470 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 146 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3695 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 3939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 3695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 04:06:24,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 189 Invalid, 3939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 04:06:24,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-02-15 04:06:24,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 589. [2022-02-15 04:06:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 469 states have (on average 1.004264392324094) internal successors, (471), 470 states have internal predecessors, (471), 60 states have call successors, (60), 60 states have call predecessors, (60), 59 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 04:06:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 590 transitions. [2022-02-15 04:06:24,775 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 590 transitions. Word has length 584 [2022-02-15 04:06:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:06:24,776 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 590 transitions. [2022-02-15 04:06:24,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 2.4833333333333334) internal successors, (298), 119 states have internal predecessors, (298), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 04:06:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 590 transitions. [2022-02-15 04:06:24,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2022-02-15 04:06:24,778 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:06:24,778 INFO L514 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 58, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:06:24,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-02-15 04:06:24,779 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:06:24,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:06:24,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1267928220, now seen corresponding path program 114 times [2022-02-15 04:06:24,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:06:24,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344532258] [2022-02-15 04:06:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:06:24,780 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:06:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:06:24,784 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:06:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:06:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 04:06:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:06:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:06:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:06:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:06:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:06:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:06:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:06:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:06:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:06:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:06:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:06:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:06:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:06:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:06:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:06:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:06:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:06:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:06:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:06:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:06:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:06:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:06:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:06:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:06:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:06:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:06:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:06:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:06:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:06:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:06:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:06:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:06:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:06:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:06:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:06:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:06:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:06:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:06:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:06:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:06:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:06:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-15 04:06:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-15 04:06:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-15 04:06:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-15 04:06:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-15 04:06:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-15 04:06:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-15 04:06:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-15 04:06:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-15 04:06:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-15 04:06:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-15 04:06:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2022-02-15 04:06:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-02-15 04:06:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-02-15 04:06:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-02-15 04:06:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:06:29,923 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:06:29,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344532258] [2022-02-15 04:06:29,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1344532258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:06:29,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:06:29,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [124] imperfect sequences [] total 124 [2022-02-15 04:06:29,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506719755] [2022-02-15 04:06:29,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:06:29,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-02-15 04:06:29,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:06:29,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-02-15 04:06:29,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=15004, Unknown=0, NotChecked=0, Total=15252 [2022-02-15 04:06:29,927 INFO L87 Difference]: Start difference. First operand 589 states and 590 transitions. Second operand has 124 states, 123 states have (on average 2.4390243902439024) internal successors, (300), 122 states have internal predecessors, (300), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 04:06:49,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:06:49,181 INFO L93 Difference]: Finished difference Result 602 states and 603 transitions. [2022-02-15 04:06:49,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-15 04:06:49,182 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 123 states have (on average 2.4390243902439024) internal successors, (300), 122 states have internal predecessors, (300), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Word has length 586 [2022-02-15 04:06:49,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:06:49,183 INFO L225 Difference]: With dead ends: 602 [2022-02-15 04:06:49,184 INFO L226 Difference]: Without dead ends: 600 [2022-02-15 04:06:49,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7685 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=863, Invalid=59407, Unknown=0, NotChecked=0, Total=60270 [2022-02-15 04:06:49,187 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 315 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 50577 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 50935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 50577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:06:49,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 678 Invalid, 50935 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [358 Valid, 50577 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-02-15 04:06:49,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-02-15 04:06:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 597. [2022-02-15 04:06:49,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 475 states have (on average 1.0042105263157894) internal successors, (477), 476 states have internal predecessors, (477), 61 states have call successors, (61), 61 states have call predecessors, (61), 60 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 04:06:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 598 transitions. [2022-02-15 04:06:49,496 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 598 transitions. Word has length 586 [2022-02-15 04:06:49,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:06:49,496 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 598 transitions. [2022-02-15 04:06:49,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 123 states have (on average 2.4390243902439024) internal successors, (300), 122 states have internal predecessors, (300), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 04:06:49,496 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 598 transitions. [2022-02-15 04:06:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2022-02-15 04:06:49,499 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:06:49,499 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:06:49,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-02-15 04:06:49,499 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:06:49,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:06:49,499 INFO L85 PathProgramCache]: Analyzing trace with hash -588139202, now seen corresponding path program 115 times [2022-02-15 04:06:49,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:06:49,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128260816] [2022-02-15 04:06:49,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:06:49,500 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:06:49,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:06:49,506 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:06:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:06:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-15 04:06:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:06:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:06:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:06:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:06:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:06:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:06:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:06:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:06:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:06:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:06:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:06:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:06:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:06:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:06:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:06:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:06:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:06:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:06:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:06:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:06:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:06:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:06:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:06:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:06:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:06:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:06:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:06:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:06:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:06:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:06:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:06:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:06:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:06:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:06:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:06:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:06:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:06:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:06:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:06:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:06:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:06:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-15 04:06:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-15 04:06:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-15 04:06:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-15 04:06:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-15 04:06:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-15 04:06:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-15 04:06:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-15 04:06:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-15 04:06:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-15 04:06:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-15 04:06:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2022-02-15 04:06:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-02-15 04:06:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-02-15 04:06:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-02-15 04:06:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2022-02-15 04:06:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:06:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:06:53,044 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:06:53,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128260816] [2022-02-15 04:06:53,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [128260816] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:06:53,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:06:53,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [122] imperfect sequences [] total 122 [2022-02-15 04:06:53,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068966590] [2022-02-15 04:06:53,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:06:53,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-02-15 04:06:53,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:06:53,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-02-15 04:06:53,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3606, Invalid=11156, Unknown=0, NotChecked=0, Total=14762 [2022-02-15 04:06:53,048 INFO L87 Difference]: Start difference. First operand 597 states and 598 transitions. Second operand has 122 states, 122 states have (on average 2.4836065573770494) internal successors, (303), 121 states have internal predecessors, (303), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 04:06:57,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:06:57,727 INFO L93 Difference]: Finished difference Result 844 states and 904 transitions. [2022-02-15 04:06:57,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-02-15 04:06:57,728 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 122 states have (on average 2.4836065573770494) internal successors, (303), 121 states have internal predecessors, (303), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Word has length 594 [2022-02-15 04:06:57,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:06:57,730 INFO L225 Difference]: With dead ends: 844 [2022-02-15 04:06:57,730 INFO L226 Difference]: Without dead ends: 600 [2022-02-15 04:06:57,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14035 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=11048, Invalid=46792, Unknown=0, NotChecked=0, Total=57840 [2022-02-15 04:06:57,733 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 148 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 3805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 04:06:57,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 171 Invalid, 3805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 04:06:57,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-02-15 04:06:58,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 599. [2022-02-15 04:06:58,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 477 states have (on average 1.0041928721174005) internal successors, (479), 478 states have internal predecessors, (479), 61 states have call successors, (61), 61 states have call predecessors, (61), 60 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 04:06:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 600 transitions. [2022-02-15 04:06:58,024 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 600 transitions. Word has length 594 [2022-02-15 04:06:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:06:58,024 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 600 transitions. [2022-02-15 04:06:58,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 122 states have (on average 2.4836065573770494) internal successors, (303), 121 states have internal predecessors, (303), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 04:06:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 600 transitions. [2022-02-15 04:06:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-02-15 04:06:58,028 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:06:58,028 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 59, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:06:58,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-02-15 04:06:58,028 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:06:58,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:06:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1187382044, now seen corresponding path program 116 times [2022-02-15 04:06:58,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:06:58,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878395599] [2022-02-15 04:06:58,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:06:58,030 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:06:58,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:06:58,034 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:06:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:07:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:07:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:07:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:07:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:07:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:07:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:07:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:07:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:07:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:07:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:07:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:07:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:07:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:07:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:07:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:07:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:07:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:07:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:07:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:07:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:07:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:07:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:07:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:07:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:07:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:07:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:07:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:07:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:07:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:07:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:07:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:07:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:07:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:07:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:07:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:07:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:07:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:07:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:07:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:07:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-15 04:07:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-15 04:07:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-15 04:07:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-15 04:07:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-15 04:07:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-15 04:07:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-15 04:07:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-15 04:07:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-15 04:07:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-15 04:07:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-02-15 04:07:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-02-15 04:07:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-02-15 04:07:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-02-15 04:07:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-02-15 04:07:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2022-02-15 04:07:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2022-02-15 04:07:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2022-02-15 04:07:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2022-02-15 04:07:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:07:03,359 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:07:03,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878395599] [2022-02-15 04:07:03,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [878395599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:07:03,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:07:03,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [126] imperfect sequences [] total 126 [2022-02-15 04:07:03,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210465192] [2022-02-15 04:07:03,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:07:03,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-02-15 04:07:03,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:07:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-02-15 04:07:03,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=15498, Unknown=0, NotChecked=0, Total=15750 [2022-02-15 04:07:03,362 INFO L87 Difference]: Start difference. First operand 599 states and 600 transitions. Second operand has 126 states, 125 states have (on average 2.44) internal successors, (305), 124 states have internal predecessors, (305), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 04:07:23,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:07:23,195 INFO L93 Difference]: Finished difference Result 612 states and 613 transitions. [2022-02-15 04:07:23,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-15 04:07:23,195 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 125 states have (on average 2.44) internal successors, (305), 124 states have internal predecessors, (305), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Word has length 596 [2022-02-15 04:07:23,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:07:23,197 INFO L225 Difference]: With dead ends: 612 [2022-02-15 04:07:23,197 INFO L226 Difference]: Without dead ends: 610 [2022-02-15 04:07:23,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7935 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=877, Invalid=61373, Unknown=0, NotChecked=0, Total=62250 [2022-02-15 04:07:23,199 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 320 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 52274 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 52638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 52274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:07:23,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 689 Invalid, 52638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [364 Valid, 52274 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-02-15 04:07:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-02-15 04:07:23,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 607. [2022-02-15 04:07:23,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 483 states have (on average 1.0041407867494825) internal successors, (485), 484 states have internal predecessors, (485), 62 states have call successors, (62), 62 states have call predecessors, (62), 61 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 04:07:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 608 transitions. [2022-02-15 04:07:23,501 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 608 transitions. Word has length 596 [2022-02-15 04:07:23,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:07:23,501 INFO L470 AbstractCegarLoop]: Abstraction has 607 states and 608 transitions. [2022-02-15 04:07:23,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 125 states have (on average 2.44) internal successors, (305), 124 states have internal predecessors, (305), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 04:07:23,501 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 608 transitions. [2022-02-15 04:07:23,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-02-15 04:07:23,504 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:07:23,504 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:07:23,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-02-15 04:07:23,505 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:07:23,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:07:23,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1711567626, now seen corresponding path program 117 times [2022-02-15 04:07:23,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:07:23,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106042011] [2022-02-15 04:07:23,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:07:23,506 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:07:23,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:07:23,510 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:07:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:07:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-15 04:07:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-15 04:07:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-15 04:07:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-15 04:07:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-15 04:07:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-15 04:07:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-15 04:07:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-15 04:07:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-15 04:07:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-15 04:07:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-15 04:07:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-15 04:07:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-15 04:07:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-15 04:07:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-15 04:07:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-15 04:07:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-15 04:07:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-15 04:07:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-15 04:07:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-15 04:07:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-15 04:07:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-15 04:07:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-15 04:07:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-15 04:07:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-15 04:07:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-15 04:07:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-15 04:07:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-15 04:07:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-15 04:07:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-15 04:07:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-15 04:07:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-15 04:07:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-15 04:07:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-15 04:07:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-15 04:07:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-15 04:07:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-15 04:07:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-15 04:07:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-15 04:07:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-15 04:07:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-15 04:07:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-15 04:07:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-15 04:07:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-15 04:07:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-15 04:07:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-15 04:07:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-15 04:07:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-15 04:07:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-15 04:07:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-02-15 04:07:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-02-15 04:07:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-02-15 04:07:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-02-15 04:07:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-02-15 04:07:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2022-02-15 04:07:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2022-02-15 04:07:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2022-02-15 04:07:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2022-02-15 04:07:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2022-02-15 04:07:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:07:26,740 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:07:26,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106042011] [2022-02-15 04:07:26,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [106042011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:07:26,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:07:26,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [124] imperfect sequences [] total 124 [2022-02-15 04:07:26,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226907758] [2022-02-15 04:07:26,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:07:26,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-02-15 04:07:26,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:07:26,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-02-15 04:07:26,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3727, Invalid=11525, Unknown=0, NotChecked=0, Total=15252 [2022-02-15 04:07:26,742 INFO L87 Difference]: Start difference. First operand 607 states and 608 transitions. Second operand has 124 states, 124 states have (on average 2.4838709677419355) internal successors, (308), 123 states have internal predecessors, (308), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 04:07:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:07:31,982 INFO L93 Difference]: Finished difference Result 858 states and 919 transitions. [2022-02-15 04:07:31,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-02-15 04:07:31,984 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 2.4838709677419355) internal successors, (308), 123 states have internal predecessors, (308), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 604 [2022-02-15 04:07:31,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:07:31,987 INFO L225 Difference]: With dead ends: 858 [2022-02-15 04:07:31,987 INFO L226 Difference]: Without dead ends: 610 [2022-02-15 04:07:31,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14513 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=11415, Invalid=48365, Unknown=0, NotChecked=0, Total=59780 [2022-02-15 04:07:31,991 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 150 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3275 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 3529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 3275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:07:31,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 173 Invalid, 3529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 3275 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 04:07:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-02-15 04:07:32,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 609. [2022-02-15 04:07:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 485 states have (on average 1.0041237113402062) internal successors, (487), 486 states have internal predecessors, (487), 62 states have call successors, (62), 62 states have call predecessors, (62), 61 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 04:07:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 610 transitions. [2022-02-15 04:07:32,337 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 610 transitions. Word has length 604 [2022-02-15 04:07:32,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:07:32,337 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 610 transitions. [2022-02-15 04:07:32,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 2.4838709677419355) internal successors, (308), 123 states have internal predecessors, (308), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 04:07:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 610 transitions. [2022-02-15 04:07:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2022-02-15 04:07:32,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:07:32,340 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 60, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:07:32,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-02-15 04:07:32,355 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:07:32,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:07:32,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1293509292, now seen corresponding path program 118 times [2022-02-15 04:07:32,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:07:32,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964677420] [2022-02-15 04:07:32,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:07:32,357 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:07:32,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:07:32,361 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:07:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:07:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:07:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:07:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:07:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:07:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:07:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:07:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:07:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:07:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:07:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:07:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:07:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:07:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:07:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:07:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:07:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:07:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:07:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:07:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:07:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:07:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:07:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:07:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:07:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:07:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:07:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:07:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:07:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:07:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:07:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:07:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:07:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:07:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:07:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:07:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:07:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:07:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:07:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:07:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:07:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:07:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-15 04:07:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-15 04:07:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-15 04:07:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-15 04:07:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-15 04:07:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-15 04:07:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-15 04:07:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-15 04:07:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-15 04:07:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-15 04:07:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-02-15 04:07:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-02-15 04:07:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-02-15 04:07:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-02-15 04:07:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2022-02-15 04:07:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 570 [2022-02-15 04:07:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 578 [2022-02-15 04:07:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2022-02-15 04:07:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2022-02-15 04:07:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:07:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:07:38,238 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:07:38,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964677420] [2022-02-15 04:07:38,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1964677420] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:07:38,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:07:38,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [128] imperfect sequences [] total 128 [2022-02-15 04:07:38,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241852710] [2022-02-15 04:07:38,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:07:38,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-02-15 04:07:38,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:07:38,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-02-15 04:07:38,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=16000, Unknown=0, NotChecked=0, Total=16256 [2022-02-15 04:07:38,240 INFO L87 Difference]: Start difference. First operand 609 states and 610 transitions. Second operand has 128 states, 127 states have (on average 2.440944881889764) internal successors, (310), 126 states have internal predecessors, (310), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 04:07:57,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:07:57,468 INFO L93 Difference]: Finished difference Result 622 states and 623 transitions. [2022-02-15 04:07:57,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-15 04:07:57,469 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 2.440944881889764) internal successors, (310), 126 states have internal predecessors, (310), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 606 [2022-02-15 04:07:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:07:57,470 INFO L225 Difference]: With dead ends: 622 [2022-02-15 04:07:57,470 INFO L226 Difference]: Without dead ends: 620 [2022-02-15 04:07:57,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8189 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=891, Invalid=63371, Unknown=0, NotChecked=0, Total=64262 [2022-02-15 04:07:57,474 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 325 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 53621 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 53991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 53621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:07:57,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 692 Invalid, 53991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [370 Valid, 53621 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-02-15 04:07:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-02-15 04:07:57,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 617. [2022-02-15 04:07:57,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 491 states have (on average 1.0040733197556009) internal successors, (493), 492 states have internal predecessors, (493), 63 states have call successors, (63), 63 states have call predecessors, (63), 62 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-15 04:07:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 618 transitions. [2022-02-15 04:07:57,800 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 618 transitions. Word has length 606 [2022-02-15 04:07:57,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:07:57,800 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 618 transitions. [2022-02-15 04:07:57,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 2.440944881889764) internal successors, (310), 126 states have internal predecessors, (310), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 04:07:57,801 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 618 transitions. [2022-02-15 04:07:57,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-02-15 04:07:57,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:07:57,804 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:07:57,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-02-15 04:07:57,805 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:07:57,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:07:57,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2145021742, now seen corresponding path program 119 times [2022-02-15 04:07:57,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:07:57,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824590797] [2022-02-15 04:07:57,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:07:57,806 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:07:57,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:07:57,810 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:07:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:08:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-15 04:08:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-15 04:08:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-15 04:08:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-15 04:08:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-15 04:08:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-15 04:08:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-15 04:08:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-15 04:08:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-15 04:08:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-15 04:08:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-15 04:08:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-15 04:08:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-15 04:08:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-15 04:08:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-15 04:08:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-15 04:08:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-15 04:08:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-15 04:08:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-15 04:08:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-15 04:08:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-15 04:08:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-15 04:08:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-15 04:08:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-15 04:08:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-15 04:08:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-15 04:08:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-15 04:08:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-15 04:08:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-15 04:08:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-15 04:08:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-15 04:08:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-15 04:08:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-15 04:08:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-15 04:08:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-15 04:08:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-15 04:08:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-15 04:08:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-15 04:08:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-15 04:08:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-15 04:08:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-15 04:08:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-15 04:08:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-15 04:08:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-15 04:08:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-15 04:08:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-15 04:08:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-15 04:08:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-15 04:08:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-15 04:08:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-15 04:08:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-02-15 04:08:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-02-15 04:08:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-02-15 04:08:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-02-15 04:08:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2022-02-15 04:08:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 570 [2022-02-15 04:08:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 578 [2022-02-15 04:08:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2022-02-15 04:08:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2022-02-15 04:08:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2022-02-15 04:08:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:00,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:08:00,618 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:08:00,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824590797] [2022-02-15 04:08:00,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [824590797] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:08:00,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:08:00,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [126] imperfect sequences [] total 126 [2022-02-15 04:08:00,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815509935] [2022-02-15 04:08:00,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:08:00,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-02-15 04:08:00,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:08:00,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-02-15 04:08:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3850, Invalid=11900, Unknown=0, NotChecked=0, Total=15750 [2022-02-15 04:08:00,622 INFO L87 Difference]: Start difference. First operand 617 states and 618 transitions. Second operand has 126 states, 126 states have (on average 2.484126984126984) internal successors, (313), 125 states have internal predecessors, (313), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 04:08:05,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:08:05,863 INFO L93 Difference]: Finished difference Result 872 states and 934 transitions. [2022-02-15 04:08:05,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-15 04:08:05,864 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 126 states have (on average 2.484126984126984) internal successors, (313), 125 states have internal predecessors, (313), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Word has length 614 [2022-02-15 04:08:05,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:08:05,866 INFO L225 Difference]: With dead ends: 872 [2022-02-15 04:08:05,866 INFO L226 Difference]: Without dead ends: 620 [2022-02-15 04:08:05,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14999 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=11788, Invalid=49964, Unknown=0, NotChecked=0, Total=61752 [2022-02-15 04:08:05,870 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 152 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2991 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 2991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 04:08:05,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 180 Invalid, 3247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 2991 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 04:08:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-02-15 04:08:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 619. [2022-02-15 04:08:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 493 states have (on average 1.0040567951318458) internal successors, (495), 494 states have internal predecessors, (495), 63 states have call successors, (63), 63 states have call predecessors, (63), 62 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-15 04:08:06,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 620 transitions. [2022-02-15 04:08:06,272 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 620 transitions. Word has length 614 [2022-02-15 04:08:06,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:08:06,272 INFO L470 AbstractCegarLoop]: Abstraction has 619 states and 620 transitions. [2022-02-15 04:08:06,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 126 states have (on average 2.484126984126984) internal successors, (313), 125 states have internal predecessors, (313), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 04:08:06,272 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 620 transitions. [2022-02-15 04:08:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2022-02-15 04:08:06,276 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:08:06,276 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 61, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:08:06,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-02-15 04:08:06,276 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:08:06,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:08:06,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1507122676, now seen corresponding path program 120 times [2022-02-15 04:08:06,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:08:06,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135102013] [2022-02-15 04:08:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:08:06,277 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:08:06,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:08:06,282 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:08:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:08:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:08:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:08:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:08:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:08:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:08:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:08:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:08:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:08:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:08:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:08:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:08:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:08:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:08:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:08:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:08:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:08:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:08:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:08:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:08:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:08:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:08:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:08:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:08:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:08:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:08:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:08:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:08:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:08:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:08:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:08:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:08:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:08:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:08:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:08:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:08:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:08:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:08:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:08:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:08:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:08:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:08:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-15 04:08:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-15 04:08:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-15 04:08:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-15 04:08:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-15 04:08:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-15 04:08:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-15 04:08:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-15 04:08:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-15 04:08:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-15 04:08:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-02-15 04:08:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-02-15 04:08:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-02-15 04:08:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-02-15 04:08:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-02-15 04:08:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2022-02-15 04:08:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2022-02-15 04:08:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2022-02-15 04:08:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2022-02-15 04:08:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:08:10,949 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:08:10,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135102013] [2022-02-15 04:08:10,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1135102013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:08:10,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:08:10,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [130] imperfect sequences [] total 130 [2022-02-15 04:08:10,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804249434] [2022-02-15 04:08:10,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:08:10,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-02-15 04:08:10,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:08:10,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-02-15 04:08:10,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=16510, Unknown=0, NotChecked=0, Total=16770 [2022-02-15 04:08:10,952 INFO L87 Difference]: Start difference. First operand 619 states and 620 transitions. Second operand has 130 states, 129 states have (on average 2.441860465116279) internal successors, (315), 128 states have internal predecessors, (315), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 04:08:31,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:08:31,057 INFO L93 Difference]: Finished difference Result 632 states and 633 transitions. [2022-02-15 04:08:31,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-15 04:08:31,058 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 129 states have (on average 2.441860465116279) internal successors, (315), 128 states have internal predecessors, (315), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Word has length 616 [2022-02-15 04:08:31,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:08:31,060 INFO L225 Difference]: With dead ends: 632 [2022-02-15 04:08:31,060 INFO L226 Difference]: Without dead ends: 630 [2022-02-15 04:08:31,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8447 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=905, Invalid=65401, Unknown=0, NotChecked=0, Total=66306 [2022-02-15 04:08:31,065 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 330 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 55119 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 55495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 55119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:08:31,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 703 Invalid, 55495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [376 Valid, 55119 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-02-15 04:08:31,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-02-15 04:08:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2022-02-15 04:08:31,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 499 states have (on average 1.0040080160320641) internal successors, (501), 500 states have internal predecessors, (501), 64 states have call successors, (64), 64 states have call predecessors, (64), 63 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-15 04:08:31,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 628 transitions. [2022-02-15 04:08:31,566 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 628 transitions. Word has length 616 [2022-02-15 04:08:31,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:08:31,566 INFO L470 AbstractCegarLoop]: Abstraction has 627 states and 628 transitions. [2022-02-15 04:08:31,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 129 states have (on average 2.441860465116279) internal successors, (315), 128 states have internal predecessors, (315), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 04:08:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 628 transitions. [2022-02-15 04:08:31,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-02-15 04:08:31,570 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:08:31,570 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:08:31,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-02-15 04:08:31,570 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:08:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:08:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash -913654810, now seen corresponding path program 121 times [2022-02-15 04:08:31,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:08:31,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857806256] [2022-02-15 04:08:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:08:31,572 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:08:31,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:08:31,578 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:08:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:08:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-15 04:08:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-15 04:08:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-15 04:08:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-15 04:08:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-15 04:08:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-15 04:08:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-15 04:08:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-15 04:08:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-15 04:08:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-15 04:08:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-15 04:08:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-15 04:08:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-15 04:08:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-15 04:08:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-15 04:08:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-15 04:08:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-15 04:08:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-15 04:08:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-15 04:08:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-15 04:08:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-15 04:08:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-15 04:08:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-15 04:08:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-15 04:08:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-15 04:08:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-15 04:08:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-15 04:08:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-15 04:08:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-15 04:08:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-15 04:08:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-15 04:08:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-15 04:08:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-15 04:08:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-15 04:08:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-15 04:08:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-15 04:08:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-15 04:08:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-15 04:08:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-15 04:08:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-15 04:08:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-15 04:08:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-15 04:08:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-15 04:08:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-15 04:08:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-15 04:08:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-15 04:08:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-15 04:08:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-15 04:08:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-15 04:08:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-15 04:08:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-15 04:08:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-02-15 04:08:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-02-15 04:08:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-02-15 04:08:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-02-15 04:08:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-02-15 04:08:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2022-02-15 04:08:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2022-02-15 04:08:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2022-02-15 04:08:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2022-02-15 04:08:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2022-02-15 04:08:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:08:35,955 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:08:35,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857806256] [2022-02-15 04:08:35,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1857806256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:08:35,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:08:35,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [128] imperfect sequences [] total 128 [2022-02-15 04:08:35,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467038337] [2022-02-15 04:08:35,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:08:35,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-02-15 04:08:35,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:08:35,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-02-15 04:08:35,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3975, Invalid=12281, Unknown=0, NotChecked=0, Total=16256 [2022-02-15 04:08:35,960 INFO L87 Difference]: Start difference. First operand 627 states and 628 transitions. Second operand has 128 states, 128 states have (on average 2.484375) internal successors, (318), 127 states have internal predecessors, (318), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-15 04:08:41,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:08:41,740 INFO L93 Difference]: Finished difference Result 886 states and 949 transitions. [2022-02-15 04:08:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-15 04:08:41,740 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 2.484375) internal successors, (318), 127 states have internal predecessors, (318), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 624 [2022-02-15 04:08:41,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:08:41,742 INFO L225 Difference]: With dead ends: 886 [2022-02-15 04:08:41,742 INFO L226 Difference]: Without dead ends: 630 [2022-02-15 04:08:41,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15493 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=12167, Invalid=51589, Unknown=0, NotChecked=0, Total=63756 [2022-02-15 04:08:41,745 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 154 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 3362 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 3620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 3362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:08:41,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 192 Invalid, 3620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 3362 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-15 04:08:41,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-02-15 04:08:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 629. [2022-02-15 04:08:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 501 states have (on average 1.003992015968064) internal successors, (503), 502 states have internal predecessors, (503), 64 states have call successors, (64), 64 states have call predecessors, (64), 63 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-15 04:08:42,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 630 transitions. [2022-02-15 04:08:42,079 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 630 transitions. Word has length 624 [2022-02-15 04:08:42,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:08:42,079 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 630 transitions. [2022-02-15 04:08:42,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 2.484375) internal successors, (318), 127 states have internal predecessors, (318), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-15 04:08:42,080 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 630 transitions. [2022-02-15 04:08:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2022-02-15 04:08:42,083 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:08:42,083 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 62, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:08:42,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-02-15 04:08:42,083 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:08:42,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:08:42,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1853354308, now seen corresponding path program 122 times [2022-02-15 04:08:42,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:08:42,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269715364] [2022-02-15 04:08:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:08:42,084 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:08:42,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:08:42,089 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:08:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:08:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-15 04:08:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-15 04:08:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-15 04:08:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-15 04:08:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-15 04:08:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-15 04:08:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-15 04:08:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-15 04:08:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-15 04:08:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-15 04:08:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-15 04:08:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-15 04:08:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-15 04:08:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-15 04:08:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-15 04:08:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-15 04:08:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-15 04:08:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-15 04:08:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-15 04:08:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-15 04:08:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-15 04:08:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-15 04:08:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-15 04:08:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-15 04:08:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-15 04:08:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-15 04:08:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-15 04:08:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-15 04:08:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-15 04:08:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-15 04:08:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-15 04:08:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-15 04:08:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-15 04:08:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-15 04:08:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-15 04:08:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-15 04:08:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-15 04:08:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-15 04:08:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-15 04:08:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-15 04:08:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-15 04:08:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-15 04:08:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-15 04:08:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-15 04:08:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-15 04:08:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-15 04:08:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-15 04:08:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-15 04:08:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-15 04:08:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-15 04:08:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-15 04:08:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-15 04:08:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2022-02-15 04:08:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-02-15 04:08:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-02-15 04:08:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-02-15 04:08:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2022-02-15 04:08:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2022-02-15 04:08:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2022-02-15 04:08:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2022-02-15 04:08:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2022-02-15 04:08:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:08:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:08:48,135 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:08:48,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269715364] [2022-02-15 04:08:48,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [269715364] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:08:48,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:08:48,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [132] imperfect sequences [] total 132 [2022-02-15 04:08:48,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472833615] [2022-02-15 04:08:48,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:08:48,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2022-02-15 04:08:48,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:08:48,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2022-02-15 04:08:48,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=17028, Unknown=0, NotChecked=0, Total=17292 [2022-02-15 04:08:48,138 INFO L87 Difference]: Start difference. First operand 629 states and 630 transitions. Second operand has 132 states, 131 states have (on average 2.4427480916030535) internal successors, (320), 130 states have internal predecessors, (320), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62)