/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-05ce600 [2022-02-24 03:23:28,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 03:23:28,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 03:23:28,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 03:23:28,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 03:23:28,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 03:23:28,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 03:23:28,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-24 03:23:28,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 03:23:28,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 03:23:28,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 03:23:28,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 03:23:28,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 03:23:28,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 03:23:28,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 03:23:28,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 03:23:28,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 03:23:28,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 03:23:28,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 03:23:28,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 03:23:28,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 03:23:28,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 03:23:28,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 03:23:28,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 03:23:28,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 03:23:28,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 03:23:28,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 03:23:28,962 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-24 03:23:28,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 03:23:29,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 03:23:29,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 03:23:29,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 03:23:29,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 03:23:29,214 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 03:23:29,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i [2022-02-24 03:23:29,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a24d24f88/a8acdbd9c1904bcca26b4ec29cecfd64/FLAG2f7d5b78d [2022-02-24 03:23:29,622 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 03:23:29,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/mcmillan2006.i [2022-02-24 03:23:29,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a24d24f88/a8acdbd9c1904bcca26b4ec29cecfd64/FLAG2f7d5b78d [2022-02-24 03:23:30,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a24d24f88/a8acdbd9c1904bcca26b4ec29cecfd64 [2022-02-24 03:23:30,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 03:23:30,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 03:23:30,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 03:23:30,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 03:23:30,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 03:23:30,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197f7814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30, skipping insertion in model container [2022-02-24 03:23:30,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 03:23:30,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 03:23:30,198 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] [2022-02-24 03:23:30,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 03:23:30,218 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 03:23:30,226 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] [2022-02-24 03:23:30,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 03:23:30,239 INFO L208 MainTranslator]: Completed translation [2022-02-24 03:23:30,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30 WrapperNode [2022-02-24 03:23:30,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 03:23:30,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 03:23:30,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 03:23:30,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 03:23:30,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 03:23:30,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 03:23:30,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 03:23:30,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 03:23:30,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (1/1) ... [2022-02-24 03:23:30,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 03:23:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 03:23:30,300 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) [2022-02-24 03:23:30,316 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 [2022-02-24 03:23:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 03:23:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 03:23:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 03:23:30,336 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-24 03:23:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-24 03:23:30,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 03:23:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 03:23:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 03:23:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 03:23:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-24 03:23:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-24 03:23:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 03:23:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 03:23:30,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-24 03:23:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-24 03:23:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 03:23:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 03:23:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 03:23:30,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 03:23:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 03:23:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 03:23:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 03:23:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 03:23:30,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 03:23:30,392 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 03:23:30,394 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 03:23:30,557 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 03:23:30,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 03:23:30,561 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-24 03:23:30,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:23:30 BoogieIcfgContainer [2022-02-24 03:23:30,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 03:23:30,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 03:23:30,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 03:23:30,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 03:23:30,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:23:30" (1/3) ... [2022-02-24 03:23:30,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73076a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:23:30, skipping insertion in model container [2022-02-24 03:23:30,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:23:30" (2/3) ... [2022-02-24 03:23:30,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73076a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:23:30, skipping insertion in model container [2022-02-24 03:23:30,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:23:30" (3/3) ... [2022-02-24 03:23:30,585 INFO L111 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2022-02-24 03:23:30,589 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 03:23:30,589 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 03:23:30,656 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 03:23:30,678 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 [2022-02-24 03:23:30,678 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 03:23:30,691 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) [2022-02-24 03:23:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-24 03:23:30,697 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:30,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:23:30,698 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:30,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:30,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1868594418, now seen corresponding path program 1 times [2022-02-24 03:23:30,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:30,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624876043] [2022-02-24 03:23:30,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:30,774 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 03:23:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:30,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:30,997 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:30,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624876043] [2022-02-24 03:23:30,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1624876043] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:30,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:30,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 03:23:31,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800901935] [2022-02-24 03:23:31,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:31,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 03:23:31,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 03:23:31,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-24 03:23:31,026 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) [2022-02-24 03:23:31,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:31,130 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2022-02-24 03:23:31,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 03:23:31,132 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 [2022-02-24 03:23:31,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:31,137 INFO L225 Difference]: With dead ends: 48 [2022-02-24 03:23:31,137 INFO L226 Difference]: Without dead ends: 22 [2022-02-24 03:23:31,140 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 [2022-02-24 03:23:31,143 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 [2022-02-24 03:23:31,144 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] [2022-02-24 03:23:31,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-02-24 03:23:31,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2022-02-24 03:23:31,170 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) [2022-02-24 03:23:31,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-02-24 03:23:31,172 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2022-02-24 03:23:31,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:31,173 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-02-24 03:23:31,173 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) [2022-02-24 03:23:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-02-24 03:23:31,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-24 03:23:31,174 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:31,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:23:31,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 03:23:31,174 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:31,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:31,175 INFO L85 PathProgramCache]: Analyzing trace with hash -426319892, now seen corresponding path program 1 times [2022-02-24 03:23:31,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:31,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645434402] [2022-02-24 03:23:31,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:31,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:31,186 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:31,186 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:31,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:31,436 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:31,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645434402] [2022-02-24 03:23:31,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1645434402] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:31,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:31,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-24 03:23:31,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448851557] [2022-02-24 03:23:31,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:31,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-24 03:23:31,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:31,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-24 03:23:31,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-24 03:23:31,439 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) [2022-02-24 03:23:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:31,645 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-02-24 03:23:31,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-24 03:23:31,646 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 [2022-02-24 03:23:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:31,647 INFO L225 Difference]: With dead ends: 32 [2022-02-24 03:23:31,648 INFO L226 Difference]: Without dead ends: 30 [2022-02-24 03:23:31,653 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 [2022-02-24 03:23:31,655 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 [2022-02-24 03:23:31,656 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] [2022-02-24 03:23:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-24 03:23:31,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2022-02-24 03:23:31,673 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) [2022-02-24 03:23:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-02-24 03:23:31,674 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2022-02-24 03:23:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:31,675 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-02-24 03:23:31,676 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) [2022-02-24 03:23:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-02-24 03:23:31,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-02-24 03:23:31,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:31,678 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] [2022-02-24 03:23:31,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 03:23:31,681 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:31,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:31,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1328899642, now seen corresponding path program 1 times [2022-02-24 03:23:31,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:31,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7239260] [2022-02-24 03:23:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:31,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:31,688 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:31,689 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:31,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-24 03:23:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:31,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:31,800 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:31,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7239260] [2022-02-24 03:23:31,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [7239260] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:31,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:31,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 03:23:31,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030951779] [2022-02-24 03:23:31,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:31,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 03:23:31,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:31,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 03:23:31,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-24 03:23:31,803 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) [2022-02-24 03:23:31,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:31,939 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2022-02-24 03:23:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 03:23:31,940 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 [2022-02-24 03:23:31,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:31,942 INFO L225 Difference]: With dead ends: 46 [2022-02-24 03:23:31,942 INFO L226 Difference]: Without dead ends: 30 [2022-02-24 03:23:31,943 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 [2022-02-24 03:23:31,944 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 [2022-02-24 03:23:31,944 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] [2022-02-24 03:23:31,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-24 03:23:31,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-02-24 03:23:31,953 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) [2022-02-24 03:23:31,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-02-24 03:23:31,954 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2022-02-24 03:23:31,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:31,954 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-02-24 03:23:31,954 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) [2022-02-24 03:23:31,954 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-02-24 03:23:31,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-02-24 03:23:31,955 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:31,955 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] [2022-02-24 03:23:31,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 03:23:31,955 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:31,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1936590556, now seen corresponding path program 2 times [2022-02-24 03:23:31,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:31,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100156738] [2022-02-24 03:23:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:31,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:31,959 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:31,959 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-02-24 03:23:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:32,095 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:32,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100156738] [2022-02-24 03:23:32,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1100156738] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:32,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:32,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-24 03:23:32,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764769121] [2022-02-24 03:23:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:32,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-24 03:23:32,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:32,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-24 03:23:32,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-02-24 03:23:32,097 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) [2022-02-24 03:23:32,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:32,377 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2022-02-24 03:23:32,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-24 03:23:32,378 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 [2022-02-24 03:23:32,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:32,379 INFO L225 Difference]: With dead ends: 42 [2022-02-24 03:23:32,379 INFO L226 Difference]: Without dead ends: 40 [2022-02-24 03:23:32,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2022-02-24 03:23:32,380 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 [2022-02-24 03:23:32,381 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] [2022-02-24 03:23:32,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-02-24 03:23:32,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2022-02-24 03:23:32,390 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) [2022-02-24 03:23:32,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2022-02-24 03:23:32,391 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 26 [2022-02-24 03:23:32,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:32,392 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2022-02-24 03:23:32,392 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) [2022-02-24 03:23:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2022-02-24 03:23:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-02-24 03:23:32,393 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:32,393 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] [2022-02-24 03:23:32,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 03:23:32,393 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:32,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:32,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1234500350, now seen corresponding path program 3 times [2022-02-24 03:23:32,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:32,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786087095] [2022-02-24 03:23:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:32,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:32,397 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:32,397 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-02-24 03:23:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-24 03:23:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:32,515 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:32,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786087095] [2022-02-24 03:23:32,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [786087095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:32,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:32,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-24 03:23:32,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627519802] [2022-02-24 03:23:32,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:32,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-24 03:23:32,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:32,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-24 03:23:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-24 03:23:32,521 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) [2022-02-24 03:23:32,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:32,676 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2022-02-24 03:23:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-24 03:23:32,677 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 [2022-02-24 03:23:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:32,678 INFO L225 Difference]: With dead ends: 60 [2022-02-24 03:23:32,678 INFO L226 Difference]: Without dead ends: 40 [2022-02-24 03:23:32,679 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 [2022-02-24 03:23:32,680 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 [2022-02-24 03:23:32,680 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] [2022-02-24 03:23:32,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-02-24 03:23:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2022-02-24 03:23:32,688 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) [2022-02-24 03:23:32,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2022-02-24 03:23:32,689 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 34 [2022-02-24 03:23:32,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:32,690 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2022-02-24 03:23:32,690 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) [2022-02-24 03:23:32,690 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2022-02-24 03:23:32,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-24 03:23:32,691 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:32,691 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] [2022-02-24 03:23:32,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 03:23:32,691 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:32,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:32,692 INFO L85 PathProgramCache]: Analyzing trace with hash -487899940, now seen corresponding path program 4 times [2022-02-24 03:23:32,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:32,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897976369] [2022-02-24 03:23:32,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:32,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:32,695 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:32,695 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-24 03:23:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-24 03:23:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:32,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:32,872 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:32,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897976369] [2022-02-24 03:23:32,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1897976369] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:32,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:32,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-24 03:23:32,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478093369] [2022-02-24 03:23:32,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:32,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-24 03:23:32,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:32,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-24 03:23:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-24 03:23:32,874 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) [2022-02-24 03:23:33,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:33,199 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2022-02-24 03:23:33,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-24 03:23:33,200 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 [2022-02-24 03:23:33,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:33,200 INFO L225 Difference]: With dead ends: 52 [2022-02-24 03:23:33,201 INFO L226 Difference]: Without dead ends: 50 [2022-02-24 03:23:33,201 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 [2022-02-24 03:23:33,202 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:33,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 69 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 03:23:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-02-24 03:23:33,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2022-02-24 03:23:33,213 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) [2022-02-24 03:23:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2022-02-24 03:23:33,214 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 36 [2022-02-24 03:23:33,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:33,214 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2022-02-24 03:23:33,214 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) [2022-02-24 03:23:33,215 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2022-02-24 03:23:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-24 03:23:33,215 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:33,216 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] [2022-02-24 03:23:33,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 03:23:33,216 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:33,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:33,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1322580298, now seen corresponding path program 5 times [2022-02-24 03:23:33,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:33,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284180870] [2022-02-24 03:23:33,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:33,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:33,219 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:33,219 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-24 03:23:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-24 03:23:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 03:23:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:33,328 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:33,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284180870] [2022-02-24 03:23:33,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [284180870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:33,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:33,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-24 03:23:33,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438860277] [2022-02-24 03:23:33,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:33,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-24 03:23:33,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:33,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-24 03:23:33,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-02-24 03:23:33,331 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) [2022-02-24 03:23:33,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:33,526 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2022-02-24 03:23:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-24 03:23:33,527 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 [2022-02-24 03:23:33,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:33,530 INFO L225 Difference]: With dead ends: 74 [2022-02-24 03:23:33,530 INFO L226 Difference]: Without dead ends: 50 [2022-02-24 03:23:33,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2022-02-24 03:23:33,532 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 [2022-02-24 03:23:33,532 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] [2022-02-24 03:23:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-02-24 03:23:33,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2022-02-24 03:23:33,552 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) [2022-02-24 03:23:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2022-02-24 03:23:33,554 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 44 [2022-02-24 03:23:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:33,554 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2022-02-24 03:23:33,554 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) [2022-02-24 03:23:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2022-02-24 03:23:33,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-02-24 03:23:33,560 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:33,560 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] [2022-02-24 03:23:33,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 03:23:33,561 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:33,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:33,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1186401044, now seen corresponding path program 6 times [2022-02-24 03:23:33,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:33,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817110182] [2022-02-24 03:23:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:33,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:33,565 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:33,565 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-24 03:23:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-24 03:23:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 03:23:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:33,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:33,808 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:33,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817110182] [2022-02-24 03:23:33,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [817110182] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:33,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:33,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-24 03:23:33,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194523815] [2022-02-24 03:23:33,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:33,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-24 03:23:33,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:33,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-24 03:23:33,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-02-24 03:23:33,809 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) [2022-02-24 03:23:34,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:34,238 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2022-02-24 03:23:34,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-24 03:23:34,238 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 [2022-02-24 03:23:34,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:34,239 INFO L225 Difference]: With dead ends: 62 [2022-02-24 03:23:34,239 INFO L226 Difference]: Without dead ends: 60 [2022-02-24 03:23:34,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2022-02-24 03:23:34,240 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 [2022-02-24 03:23:34,240 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] [2022-02-24 03:23:34,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-02-24 03:23:34,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2022-02-24 03:23:34,249 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) [2022-02-24 03:23:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2022-02-24 03:23:34,250 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 46 [2022-02-24 03:23:34,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:34,250 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2022-02-24 03:23:34,251 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) [2022-02-24 03:23:34,251 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2022-02-24 03:23:34,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-24 03:23:34,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:34,252 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] [2022-02-24 03:23:34,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 03:23:34,252 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:34,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:34,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1707008786, now seen corresponding path program 7 times [2022-02-24 03:23:34,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:34,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96277243] [2022-02-24 03:23:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:34,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:34,255 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:34,255 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-24 03:23:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-24 03:23:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 03:23:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 03:23:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:34,373 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:34,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96277243] [2022-02-24 03:23:34,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [96277243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:34,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:34,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-24 03:23:34,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578175961] [2022-02-24 03:23:34,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:34,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-24 03:23:34,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:34,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-24 03:23:34,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-02-24 03:23:34,375 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) [2022-02-24 03:23:34,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:34,598 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2022-02-24 03:23:34,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-24 03:23:34,598 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 [2022-02-24 03:23:34,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:34,599 INFO L225 Difference]: With dead ends: 88 [2022-02-24 03:23:34,599 INFO L226 Difference]: Without dead ends: 60 [2022-02-24 03:23:34,600 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 [2022-02-24 03:23:34,601 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 [2022-02-24 03:23:34,601 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] [2022-02-24 03:23:34,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-02-24 03:23:34,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2022-02-24 03:23:34,610 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) [2022-02-24 03:23:34,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2022-02-24 03:23:34,611 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 54 [2022-02-24 03:23:34,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:34,612 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2022-02-24 03:23:34,612 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) [2022-02-24 03:23:34,612 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2022-02-24 03:23:34,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-24 03:23:34,612 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:34,612 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] [2022-02-24 03:23:34,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 03:23:34,613 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:34,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:34,613 INFO L85 PathProgramCache]: Analyzing trace with hash -275659828, now seen corresponding path program 8 times [2022-02-24 03:23:34,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:34,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889829318] [2022-02-24 03:23:34,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:34,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:34,616 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:34,616 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-24 03:23:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-24 03:23:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 03:23:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 03:23:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:34,842 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:34,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889829318] [2022-02-24 03:23:34,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1889829318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:34,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:34,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-24 03:23:34,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730176723] [2022-02-24 03:23:34,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:34,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-24 03:23:34,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:34,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-24 03:23:34,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-24 03:23:34,844 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) [2022-02-24 03:23:35,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:35,351 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2022-02-24 03:23:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-24 03:23:35,356 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 [2022-02-24 03:23:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:35,357 INFO L225 Difference]: With dead ends: 72 [2022-02-24 03:23:35,357 INFO L226 Difference]: Without dead ends: 70 [2022-02-24 03:23:35,357 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 [2022-02-24 03:23:35,358 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, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:35,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 87 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 03:23:35,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-02-24 03:23:35,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2022-02-24 03:23:35,369 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) [2022-02-24 03:23:35,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2022-02-24 03:23:35,370 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 56 [2022-02-24 03:23:35,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:35,370 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2022-02-24 03:23:35,370 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) [2022-02-24 03:23:35,370 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2022-02-24 03:23:35,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 03:23:35,371 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:35,371 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] [2022-02-24 03:23:35,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 03:23:35,371 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:35,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:35,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1978425946, now seen corresponding path program 9 times [2022-02-24 03:23:35,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:35,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943229740] [2022-02-24 03:23:35,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:35,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:35,374 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:35,375 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:35,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-24 03:23:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:35,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-24 03:23:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:35,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 03:23:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:35,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 03:23:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:35,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:23:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:35,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:35,514 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:35,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943229740] [2022-02-24 03:23:35,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [943229740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:35,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:35,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-24 03:23:35,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866928230] [2022-02-24 03:23:35,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:35,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-24 03:23:35,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:35,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-24 03:23:35,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-02-24 03:23:35,516 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) [2022-02-24 03:23:35,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:35,827 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2022-02-24 03:23:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-24 03:23:35,828 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 [2022-02-24 03:23:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:35,829 INFO L225 Difference]: With dead ends: 102 [2022-02-24 03:23:35,829 INFO L226 Difference]: Without dead ends: 70 [2022-02-24 03:23:35,830 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 [2022-02-24 03:23:35,830 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:35,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 65 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 03:23:35,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-02-24 03:23:35,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2022-02-24 03:23:35,841 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) [2022-02-24 03:23:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2022-02-24 03:23:35,842 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 64 [2022-02-24 03:23:35,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:35,842 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2022-02-24 03:23:35,842 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) [2022-02-24 03:23:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2022-02-24 03:23:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 03:23:35,843 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:35,843 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] [2022-02-24 03:23:35,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 03:23:35,843 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:35,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:35,844 INFO L85 PathProgramCache]: Analyzing trace with hash -442513660, now seen corresponding path program 10 times [2022-02-24 03:23:35,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:35,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169997490] [2022-02-24 03:23:35,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:35,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:35,847 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:35,847 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-24 03:23:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-24 03:23:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 03:23:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 03:23:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:23:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:36,113 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:36,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169997490] [2022-02-24 03:23:36,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [169997490] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:36,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:36,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-24 03:23:36,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024133731] [2022-02-24 03:23:36,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:36,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-24 03:23:36,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:36,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-24 03:23:36,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2022-02-24 03:23:36,115 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) [2022-02-24 03:23:36,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:36,771 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2022-02-24 03:23:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-24 03:23:36,772 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 [2022-02-24 03:23:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:36,772 INFO L225 Difference]: With dead ends: 82 [2022-02-24 03:23:36,772 INFO L226 Difference]: Without dead ends: 80 [2022-02-24 03:23:36,773 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 [2022-02-24 03:23:36,774 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 [2022-02-24 03:23:36,774 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] [2022-02-24 03:23:36,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-02-24 03:23:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2022-02-24 03:23:36,786 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) [2022-02-24 03:23:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2022-02-24 03:23:36,786 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 66 [2022-02-24 03:23:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:36,787 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2022-02-24 03:23:36,787 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) [2022-02-24 03:23:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2022-02-24 03:23:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-24 03:23:36,788 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:36,788 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] [2022-02-24 03:23:36,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 03:23:36,788 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash -832116514, now seen corresponding path program 11 times [2022-02-24 03:23:36,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:36,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697407285] [2022-02-24 03:23:36,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:36,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:36,791 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:36,791 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-24 03:23:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-24 03:23:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 03:23:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 03:23:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:23:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:23:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:36,949 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:36,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697407285] [2022-02-24 03:23:36,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [697407285] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:36,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:36,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-24 03:23:36,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479863237] [2022-02-24 03:23:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:36,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-24 03:23:36,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-24 03:23:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-24 03:23:36,951 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) [2022-02-24 03:23:37,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:37,267 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2022-02-24 03:23:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-24 03:23:37,267 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 [2022-02-24 03:23:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:37,268 INFO L225 Difference]: With dead ends: 116 [2022-02-24 03:23:37,268 INFO L226 Difference]: Without dead ends: 80 [2022-02-24 03:23:37,269 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 [2022-02-24 03:23:37,269 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:37,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 62 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 03:23:37,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-02-24 03:23:37,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2022-02-24 03:23:37,299 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) [2022-02-24 03:23:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2022-02-24 03:23:37,299 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 74 [2022-02-24 03:23:37,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:37,300 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2022-02-24 03:23:37,300 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) [2022-02-24 03:23:37,300 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2022-02-24 03:23:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-24 03:23:37,303 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:37,303 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] [2022-02-24 03:23:37,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 03:23:37,304 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:37,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2005759164, now seen corresponding path program 12 times [2022-02-24 03:23:37,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:37,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597523408] [2022-02-24 03:23:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:37,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:37,308 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:37,308 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:37,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-24 03:23:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 03:23:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 03:23:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 03:23:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:23:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:23:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:37,632 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:37,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597523408] [2022-02-24 03:23:37,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [597523408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:37,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:37,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-24 03:23:37,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818748523] [2022-02-24 03:23:37,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:37,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-24 03:23:37,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:37,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-24 03:23:37,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2022-02-24 03:23:37,635 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) [2022-02-24 03:23:38,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:38,383 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2022-02-24 03:23:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-24 03:23:38,383 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 [2022-02-24 03:23:38,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:38,384 INFO L225 Difference]: With dead ends: 92 [2022-02-24 03:23:38,384 INFO L226 Difference]: Without dead ends: 90 [2022-02-24 03:23:38,385 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 [2022-02-24 03:23:38,386 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 60 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:38,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 117 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 03:23:38,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-02-24 03:23:38,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2022-02-24 03:23:38,398 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) [2022-02-24 03:23:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2022-02-24 03:23:38,399 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 76 [2022-02-24 03:23:38,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:38,399 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2022-02-24 03:23:38,399 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) [2022-02-24 03:23:38,399 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2022-02-24 03:23:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 03:23:38,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:38,400 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] [2022-02-24 03:23:38,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 03:23:38,400 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:38,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:38,401 INFO L85 PathProgramCache]: Analyzing trace with hash -209232234, now seen corresponding path program 13 times [2022-02-24 03:23:38,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:38,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261372536] [2022-02-24 03:23:38,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:38,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:38,403 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:38,403 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-24 03:23:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 03:23:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 03:23:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 03:23:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:23:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:23:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:23:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:38,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:38,601 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:38,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261372536] [2022-02-24 03:23:38,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1261372536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:38,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:38,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-24 03:23:38,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139228081] [2022-02-24 03:23:38,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:38,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-24 03:23:38,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:38,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-24 03:23:38,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-02-24 03:23:38,603 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) [2022-02-24 03:23:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:38,996 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2022-02-24 03:23:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-24 03:23:38,997 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 [2022-02-24 03:23:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:38,998 INFO L225 Difference]: With dead ends: 130 [2022-02-24 03:23:38,998 INFO L226 Difference]: Without dead ends: 90 [2022-02-24 03:23:38,999 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 [2022-02-24 03:23:38,999 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:38,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 74 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 03:23:39,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-02-24 03:23:39,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2022-02-24 03:23:39,016 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) [2022-02-24 03:23:39,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2022-02-24 03:23:39,016 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 84 [2022-02-24 03:23:39,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:39,017 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2022-02-24 03:23:39,017 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) [2022-02-24 03:23:39,017 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2022-02-24 03:23:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-24 03:23:39,018 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:39,018 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] [2022-02-24 03:23:39,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 03:23:39,018 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:39,019 INFO L85 PathProgramCache]: Analyzing trace with hash 814689524, now seen corresponding path program 14 times [2022-02-24 03:23:39,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:39,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015960770] [2022-02-24 03:23:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:39,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:39,021 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:39,021 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-24 03:23:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 03:23:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 03:23:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 03:23:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:23:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:23:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:23:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:39,352 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:39,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015960770] [2022-02-24 03:23:39,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2015960770] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:39,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:39,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-24 03:23:39,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661823605] [2022-02-24 03:23:39,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:39,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-24 03:23:39,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:39,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-24 03:23:39,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2022-02-24 03:23:39,353 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) [2022-02-24 03:23:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:40,184 INFO L93 Difference]: Finished difference Result 102 states and 103 transitions. [2022-02-24 03:23:40,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-24 03:23:40,184 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 [2022-02-24 03:23:40,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:40,185 INFO L225 Difference]: With dead ends: 102 [2022-02-24 03:23:40,185 INFO L226 Difference]: Without dead ends: 100 [2022-02-24 03:23:40,186 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 [2022-02-24 03:23:40,187 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 [2022-02-24 03:23:40,187 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] [2022-02-24 03:23:40,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-02-24 03:23:40,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2022-02-24 03:23:40,203 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) [2022-02-24 03:23:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2022-02-24 03:23:40,205 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 86 [2022-02-24 03:23:40,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:40,205 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2022-02-24 03:23:40,205 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) [2022-02-24 03:23:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2022-02-24 03:23:40,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-24 03:23:40,206 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:40,206 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] [2022-02-24 03:23:40,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 03:23:40,207 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:40,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:40,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1169596722, now seen corresponding path program 15 times [2022-02-24 03:23:40,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:40,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874242081] [2022-02-24 03:23:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:40,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:40,211 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:40,211 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-24 03:23:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 03:23:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 03:23:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 03:23:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:23:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:23:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:23:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:23:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:40,422 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:40,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874242081] [2022-02-24 03:23:40,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [874242081] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:40,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:40,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-24 03:23:40,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22859219] [2022-02-24 03:23:40,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:40,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-24 03:23:40,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:40,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-24 03:23:40,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2022-02-24 03:23:40,424 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) [2022-02-24 03:23:40,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:40,876 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2022-02-24 03:23:40,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-24 03:23:40,877 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 [2022-02-24 03:23:40,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:40,878 INFO L225 Difference]: With dead ends: 144 [2022-02-24 03:23:40,878 INFO L226 Difference]: Without dead ends: 100 [2022-02-24 03:23:40,879 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 [2022-02-24 03:23:40,879 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 48 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:40,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 76 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 03:23:40,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-02-24 03:23:40,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2022-02-24 03:23:40,894 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) [2022-02-24 03:23:40,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2022-02-24 03:23:40,895 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 94 [2022-02-24 03:23:40,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:40,895 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2022-02-24 03:23:40,895 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) [2022-02-24 03:23:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2022-02-24 03:23:40,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-24 03:23:40,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:40,896 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] [2022-02-24 03:23:40,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 03:23:40,897 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:40,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:40,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1315000236, now seen corresponding path program 16 times [2022-02-24 03:23:40,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:40,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298988811] [2022-02-24 03:23:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:40,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:40,901 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:40,901 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-24 03:23:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 03:23:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 03:23:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:23:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:23:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:23:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:23:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:23:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:41,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:41,278 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:41,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298988811] [2022-02-24 03:23:41,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [298988811] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:41,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:41,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-24 03:23:41,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585702049] [2022-02-24 03:23:41,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:41,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-24 03:23:41,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:41,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-24 03:23:41,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2022-02-24 03:23:41,280 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) [2022-02-24 03:23:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:42,290 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2022-02-24 03:23:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-24 03:23:42,290 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 [2022-02-24 03:23:42,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:42,291 INFO L225 Difference]: With dead ends: 112 [2022-02-24 03:23:42,291 INFO L226 Difference]: Without dead ends: 110 [2022-02-24 03:23:42,292 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 [2022-02-24 03:23:42,292 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:42,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 131 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 03:23:42,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-02-24 03:23:42,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2022-02-24 03:23:42,313 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) [2022-02-24 03:23:42,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 108 transitions. [2022-02-24 03:23:42,314 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 108 transitions. Word has length 96 [2022-02-24 03:23:42,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:42,314 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 108 transitions. [2022-02-24 03:23:42,315 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) [2022-02-24 03:23:42,315 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 108 transitions. [2022-02-24 03:23:42,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-24 03:23:42,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:42,316 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] [2022-02-24 03:23:42,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 03:23:42,316 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:42,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1911993978, now seen corresponding path program 17 times [2022-02-24 03:23:42,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:42,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188048665] [2022-02-24 03:23:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:42,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:42,319 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:42,319 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-24 03:23:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 03:23:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 03:23:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:23:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:23:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:23:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:23:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:23:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:23:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:42,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:42,583 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:42,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188048665] [2022-02-24 03:23:42,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1188048665] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:42,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:42,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-24 03:23:42,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388122146] [2022-02-24 03:23:42,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:42,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-24 03:23:42,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:42,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-24 03:23:42,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2022-02-24 03:23:42,585 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) [2022-02-24 03:23:43,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:43,080 INFO L93 Difference]: Finished difference Result 158 states and 169 transitions. [2022-02-24 03:23:43,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-24 03:23:43,080 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 [2022-02-24 03:23:43,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:43,082 INFO L225 Difference]: With dead ends: 158 [2022-02-24 03:23:43,082 INFO L226 Difference]: Without dead ends: 110 [2022-02-24 03:23:43,083 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 [2022-02-24 03:23:43,083 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 50 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-02-24 03:23:43,084 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] [2022-02-24 03:23:43,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-02-24 03:23:43,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2022-02-24 03:23:43,098 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) [2022-02-24 03:23:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2022-02-24 03:23:43,099 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 104 [2022-02-24 03:23:43,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:43,099 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2022-02-24 03:23:43,099 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) [2022-02-24 03:23:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2022-02-24 03:23:43,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-24 03:23:43,100 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:43,100 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] [2022-02-24 03:23:43,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 03:23:43,100 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:43,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1220002588, now seen corresponding path program 18 times [2022-02-24 03:23:43,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:43,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350072246] [2022-02-24 03:23:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:43,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:43,103 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:43,103 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-24 03:23:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 03:23:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 03:23:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:23:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:23:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:23:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:23:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:23:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:23:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:43,539 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:43,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350072246] [2022-02-24 03:23:43,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1350072246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:43,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:43,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-24 03:23:43,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507607157] [2022-02-24 03:23:43,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:43,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-24 03:23:43,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:43,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-24 03:23:43,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2022-02-24 03:23:43,541 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) [2022-02-24 03:23:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:44,642 INFO L93 Difference]: Finished difference Result 122 states and 123 transitions. [2022-02-24 03:23:44,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-24 03:23:44,643 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 [2022-02-24 03:23:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:44,644 INFO L225 Difference]: With dead ends: 122 [2022-02-24 03:23:44,644 INFO L226 Difference]: Without dead ends: 120 [2022-02-24 03:23:44,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=2671, Unknown=0, NotChecked=0, Total=2862 [2022-02-24 03:23:44,645 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 75 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:44,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 142 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 03:23:44,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-02-24 03:23:44,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2022-02-24 03:23:44,664 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) [2022-02-24 03:23:44,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2022-02-24 03:23:44,664 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 106 [2022-02-24 03:23:44,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:44,665 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2022-02-24 03:23:44,665 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) [2022-02-24 03:23:44,665 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2022-02-24 03:23:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-24 03:23:44,666 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:44,666 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] [2022-02-24 03:23:44,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 03:23:44,666 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2058059454, now seen corresponding path program 19 times [2022-02-24 03:23:44,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:44,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252827258] [2022-02-24 03:23:44,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:44,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:44,669 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:44,669 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-24 03:23:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 03:23:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 03:23:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:23:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:23:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:23:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:23:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:23:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:23:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:23:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:44,953 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:44,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252827258] [2022-02-24 03:23:44,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1252827258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:44,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:44,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-24 03:23:44,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521036185] [2022-02-24 03:23:44,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:44,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-24 03:23:44,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:44,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-24 03:23:44,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2022-02-24 03:23:44,956 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) [2022-02-24 03:23:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:45,452 INFO L93 Difference]: Finished difference Result 172 states and 184 transitions. [2022-02-24 03:23:45,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-24 03:23:45,453 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 [2022-02-24 03:23:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:45,454 INFO L225 Difference]: With dead ends: 172 [2022-02-24 03:23:45,454 INFO L226 Difference]: Without dead ends: 120 [2022-02-24 03:23:45,455 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 [2022-02-24 03:23:45,455 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 [2022-02-24 03:23:45,456 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] [2022-02-24 03:23:45,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-02-24 03:23:45,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2022-02-24 03:23:45,475 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) [2022-02-24 03:23:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2022-02-24 03:23:45,476 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 114 [2022-02-24 03:23:45,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:45,476 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2022-02-24 03:23:45,476 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) [2022-02-24 03:23:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2022-02-24 03:23:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-02-24 03:23:45,477 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:45,477 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] [2022-02-24 03:23:45,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 03:23:45,477 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:45,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:45,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1880118428, now seen corresponding path program 20 times [2022-02-24 03:23:45,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:45,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55405945] [2022-02-24 03:23:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:45,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:45,481 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:45,481 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 03:23:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 03:23:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 03:23:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:23:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:23:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:23:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:23:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:23:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:23:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:23:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:45,966 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:45,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55405945] [2022-02-24 03:23:45,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [55405945] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:45,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:45,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-24 03:23:45,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565198610] [2022-02-24 03:23:45,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:45,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-24 03:23:45,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:45,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-24 03:23:45,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=810, Unknown=0, NotChecked=0, Total=870 [2022-02-24 03:23:45,968 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) [2022-02-24 03:23:47,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:47,223 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2022-02-24 03:23:47,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-24 03:23:47,225 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 [2022-02-24 03:23:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:47,228 INFO L225 Difference]: With dead ends: 132 [2022-02-24 03:23:47,228 INFO L226 Difference]: Without dead ends: 130 [2022-02-24 03:23:47,229 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 [2022-02-24 03:23:47,230 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 [2022-02-24 03:23:47,234 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] [2022-02-24 03:23:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-02-24 03:23:47,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-02-24 03:23:47,251 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) [2022-02-24 03:23:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 128 transitions. [2022-02-24 03:23:47,252 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 128 transitions. Word has length 116 [2022-02-24 03:23:47,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:47,252 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 128 transitions. [2022-02-24 03:23:47,253 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) [2022-02-24 03:23:47,253 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 128 transitions. [2022-02-24 03:23:47,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-24 03:23:47,253 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:47,254 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] [2022-02-24 03:23:47,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 03:23:47,254 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:47,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:47,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1566810506, now seen corresponding path program 21 times [2022-02-24 03:23:47,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:47,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404521568] [2022-02-24 03:23:47,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:47,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:47,257 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:47,257 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 03:23:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 03:23:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 03:23:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:23:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:23:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:23:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:23:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:23:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:23:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:23:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:23:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:47,565 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:47,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404521568] [2022-02-24 03:23:47,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1404521568] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:47,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:47,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-24 03:23:47,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196289408] [2022-02-24 03:23:47,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:47,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-24 03:23:47,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-24 03:23:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2022-02-24 03:23:47,567 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) [2022-02-24 03:23:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:48,129 INFO L93 Difference]: Finished difference Result 186 states and 199 transitions. [2022-02-24 03:23:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-24 03:23:48,129 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 [2022-02-24 03:23:48,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:48,131 INFO L225 Difference]: With dead ends: 186 [2022-02-24 03:23:48,131 INFO L226 Difference]: Without dead ends: 130 [2022-02-24 03:23:48,132 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 [2022-02-24 03:23:48,132 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 [2022-02-24 03:23:48,133 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] [2022-02-24 03:23:48,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-02-24 03:23:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2022-02-24 03:23:48,154 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) [2022-02-24 03:23:48,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2022-02-24 03:23:48,155 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 124 [2022-02-24 03:23:48,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:48,155 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2022-02-24 03:23:48,155 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) [2022-02-24 03:23:48,156 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2022-02-24 03:23:48,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-24 03:23:48,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:48,156 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] [2022-02-24 03:23:48,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 03:23:48,157 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:48,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:48,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1844578604, now seen corresponding path program 22 times [2022-02-24 03:23:48,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:48,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701107965] [2022-02-24 03:23:48,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:48,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:48,160 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:48,160 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 03:23:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 03:23:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 03:23:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:23:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:23:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:23:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:23:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:23:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:23:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:23:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:23:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:48,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:48,730 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:48,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701107965] [2022-02-24 03:23:48,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1701107965] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:48,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:48,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-24 03:23:48,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884334993] [2022-02-24 03:23:48,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:48,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-24 03:23:48,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:48,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-24 03:23:48,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=928, Unknown=0, NotChecked=0, Total=992 [2022-02-24 03:23:48,734 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) [2022-02-24 03:23:50,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:50,249 INFO L93 Difference]: Finished difference Result 142 states and 143 transitions. [2022-02-24 03:23:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-24 03:23:50,250 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 [2022-02-24 03:23:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:50,253 INFO L225 Difference]: With dead ends: 142 [2022-02-24 03:23:50,253 INFO L226 Difference]: Without dead ends: 140 [2022-02-24 03:23:50,254 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 [2022-02-24 03:23:50,255 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2783 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:50,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 172 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2783 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 03:23:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-02-24 03:23:50,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-02-24 03:23:50,280 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) [2022-02-24 03:23:50,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 138 transitions. [2022-02-24 03:23:50,281 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 138 transitions. Word has length 126 [2022-02-24 03:23:50,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:50,281 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 138 transitions. [2022-02-24 03:23:50,281 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) [2022-02-24 03:23:50,281 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 138 transitions. [2022-02-24 03:23:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 03:23:50,282 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:50,282 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] [2022-02-24 03:23:50,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 03:23:50,282 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:50,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash 886065326, now seen corresponding path program 23 times [2022-02-24 03:23:50,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:50,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977919161] [2022-02-24 03:23:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:50,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:50,285 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:50,285 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 03:23:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 03:23:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 03:23:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:23:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:23:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:23:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:23:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:23:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:23:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:23:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:23:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:23:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:50,641 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:50,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977919161] [2022-02-24 03:23:50,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1977919161] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:50,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:50,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-24 03:23:50,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378354181] [2022-02-24 03:23:50,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:50,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-24 03:23:50,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:50,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-24 03:23:50,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2022-02-24 03:23:50,643 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) [2022-02-24 03:23:51,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:51,289 INFO L93 Difference]: Finished difference Result 200 states and 214 transitions. [2022-02-24 03:23:51,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-24 03:23:51,289 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 [2022-02-24 03:23:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:51,290 INFO L225 Difference]: With dead ends: 200 [2022-02-24 03:23:51,291 INFO L226 Difference]: Without dead ends: 140 [2022-02-24 03:23:51,292 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 [2022-02-24 03:23:51,292 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, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:51,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 79 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 03:23:51,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-02-24 03:23:51,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2022-02-24 03:23:51,315 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) [2022-02-24 03:23:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2022-02-24 03:23:51,317 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 134 [2022-02-24 03:23:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:51,317 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2022-02-24 03:23:51,317 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) [2022-02-24 03:23:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2022-02-24 03:23:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-02-24 03:23:51,319 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:51,319 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] [2022-02-24 03:23:51,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 03:23:51,319 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:51,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1055030388, now seen corresponding path program 24 times [2022-02-24 03:23:51,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:51,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245487563] [2022-02-24 03:23:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:51,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:51,323 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:51,323 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 03:23:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 03:23:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:23:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:23:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:23:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:23:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:23:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:23:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:23:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:23:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:23:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:23:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:52,142 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:52,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245487563] [2022-02-24 03:23:52,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [245487563] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:52,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:52,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-24 03:23:52,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990737036] [2022-02-24 03:23:52,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:52,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-24 03:23:52,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:52,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-24 03:23:52,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2022-02-24 03:23:52,144 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) [2022-02-24 03:23:53,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:53,775 INFO L93 Difference]: Finished difference Result 152 states and 153 transitions. [2022-02-24 03:23:53,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-24 03:23:53,775 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 [2022-02-24 03:23:53,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:53,777 INFO L225 Difference]: With dead ends: 152 [2022-02-24 03:23:53,777 INFO L226 Difference]: Without dead ends: 150 [2022-02-24 03:23:53,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=245, Invalid=4045, Unknown=0, NotChecked=0, Total=4290 [2022-02-24 03:23:53,779 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 88 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:53,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 179 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3088 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-24 03:23:53,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-02-24 03:23:53,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2022-02-24 03:23:53,804 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) [2022-02-24 03:23:53,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2022-02-24 03:23:53,804 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 136 [2022-02-24 03:23:53,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:53,805 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2022-02-24 03:23:53,805 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) [2022-02-24 03:23:53,805 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2022-02-24 03:23:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-24 03:23:53,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:53,806 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] [2022-02-24 03:23:53,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 03:23:53,806 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:53,807 INFO L85 PathProgramCache]: Analyzing trace with hash -490496666, now seen corresponding path program 25 times [2022-02-24 03:23:53,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:53,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339967459] [2022-02-24 03:23:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:53,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:53,809 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:53,809 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 03:23:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 03:23:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:23:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:23:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:23:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:23:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:23:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:23:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:23:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:23:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:23:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:23:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:23:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:54,187 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:54,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339967459] [2022-02-24 03:23:54,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1339967459] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:54,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:54,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-24 03:23:54,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997441441] [2022-02-24 03:23:54,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:54,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-24 03:23:54,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:54,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-24 03:23:54,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2022-02-24 03:23:54,189 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) [2022-02-24 03:23:54,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:54,791 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2022-02-24 03:23:54,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-24 03:23:54,791 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 [2022-02-24 03:23:54,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:54,793 INFO L225 Difference]: With dead ends: 214 [2022-02-24 03:23:54,793 INFO L226 Difference]: Without dead ends: 150 [2022-02-24 03:23:54,794 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 [2022-02-24 03:23:54,794 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 [2022-02-24 03:23:54,795 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] [2022-02-24 03:23:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-02-24 03:23:54,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2022-02-24 03:23:54,821 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) [2022-02-24 03:23:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 150 transitions. [2022-02-24 03:23:54,822 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 150 transitions. Word has length 144 [2022-02-24 03:23:54,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:54,822 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 150 transitions. [2022-02-24 03:23:54,822 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) [2022-02-24 03:23:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 150 transitions. [2022-02-24 03:23:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 03:23:54,823 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:54,824 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] [2022-02-24 03:23:54,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 03:23:54,824 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:54,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:54,824 INFO L85 PathProgramCache]: Analyzing trace with hash 564353732, now seen corresponding path program 26 times [2022-02-24 03:23:54,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:54,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332969268] [2022-02-24 03:23:54,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:54,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:54,827 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:54,827 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 03:23:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 03:23:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:23:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:23:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:23:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:23:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:23:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:23:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:23:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:23:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:23:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:23:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:23:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:55,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:55,441 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:55,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332969268] [2022-02-24 03:23:55,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1332969268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:55,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:55,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-24 03:23:55,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293742383] [2022-02-24 03:23:55,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:55,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-24 03:23:55,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:55,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-24 03:23:55,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1188, Unknown=0, NotChecked=0, Total=1260 [2022-02-24 03:23:55,442 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) [2022-02-24 03:23:57,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:57,319 INFO L93 Difference]: Finished difference Result 162 states and 163 transitions. [2022-02-24 03:23:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-24 03:23:57,320 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 [2022-02-24 03:23:57,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:57,321 INFO L225 Difference]: With dead ends: 162 [2022-02-24 03:23:57,321 INFO L226 Difference]: Without dead ends: 160 [2022-02-24 03:23:57,322 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 [2022-02-24 03:23:57,322 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 95 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 3578 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:23:57,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 190 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 3578 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-24 03:23:57,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-02-24 03:23:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2022-02-24 03:23:57,349 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) [2022-02-24 03:23:57,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 158 transitions. [2022-02-24 03:23:57,350 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 158 transitions. Word has length 146 [2022-02-24 03:23:57,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:57,350 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 158 transitions. [2022-02-24 03:23:57,351 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) [2022-02-24 03:23:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 158 transitions. [2022-02-24 03:23:57,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-24 03:23:57,351 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:57,352 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] [2022-02-24 03:23:57,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 03:23:57,352 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:57,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:57,352 INFO L85 PathProgramCache]: Analyzing trace with hash -696599394, now seen corresponding path program 27 times [2022-02-24 03:23:57,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:57,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737739996] [2022-02-24 03:23:57,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:57,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:57,355 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:57,355 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 03:23:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 03:23:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:23:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:23:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:23:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:23:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:23:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:23:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:23:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:23:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:23:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:23:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:23:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:23:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:57,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:57,776 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:57,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737739996] [2022-02-24 03:23:57,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [737739996] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:57,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:57,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-24 03:23:57,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552358805] [2022-02-24 03:23:57,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:57,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-24 03:23:57,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:57,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-24 03:23:57,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-02-24 03:23:57,777 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) [2022-02-24 03:23:58,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:23:58,501 INFO L93 Difference]: Finished difference Result 228 states and 244 transitions. [2022-02-24 03:23:58,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-24 03:23:58,501 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 [2022-02-24 03:23:58,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:23:58,502 INFO L225 Difference]: With dead ends: 228 [2022-02-24 03:23:58,502 INFO L226 Difference]: Without dead ends: 160 [2022-02-24 03:23:58,504 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 [2022-02-24 03:23:58,504 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 [2022-02-24 03:23:58,504 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] [2022-02-24 03:23:58,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-02-24 03:23:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2022-02-24 03:23:58,541 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) [2022-02-24 03:23:58,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2022-02-24 03:23:58,542 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 154 [2022-02-24 03:23:58,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:23:58,542 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2022-02-24 03:23:58,543 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) [2022-02-24 03:23:58,543 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2022-02-24 03:23:58,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-24 03:23:58,543 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:23:58,544 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] [2022-02-24 03:23:58,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 03:23:58,544 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:23:58,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:23:58,544 INFO L85 PathProgramCache]: Analyzing trace with hash -829694852, now seen corresponding path program 28 times [2022-02-24 03:23:58,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:23:58,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212113269] [2022-02-24 03:23:58,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:23:58,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:23:58,547 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:23:58,547 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:23:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:23:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 03:23:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 03:23:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:23:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:23:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:23:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:23:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:23:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:23:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:23:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:23:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:23:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:23:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:23:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:23:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:23:59,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:23:59,260 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:23:59,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212113269] [2022-02-24 03:23:59,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [212113269] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:23:59,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:23:59,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-24 03:23:59,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409241540] [2022-02-24 03:23:59,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:23:59,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-24 03:23:59,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:23:59,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-24 03:23:59,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1330, Unknown=0, NotChecked=0, Total=1406 [2022-02-24 03:23:59,262 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) [2022-02-24 03:24:01,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:01,522 INFO L93 Difference]: Finished difference Result 172 states and 173 transitions. [2022-02-24 03:24:01,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-24 03:24:01,522 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 [2022-02-24 03:24:01,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:01,523 INFO L225 Difference]: With dead ends: 172 [2022-02-24 03:24:01,523 INFO L226 Difference]: Without dead ends: 170 [2022-02-24 03:24:01,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=261, Invalid=5141, Unknown=0, NotChecked=0, Total=5402 [2022-02-24 03:24:01,524 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 100 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 4094 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:01,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 205 Invalid, 4194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 4094 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-24 03:24:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-24 03:24:01,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2022-02-24 03:24:01,559 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) [2022-02-24 03:24:01,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 168 transitions. [2022-02-24 03:24:01,560 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 168 transitions. Word has length 156 [2022-02-24 03:24:01,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:01,560 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 168 transitions. [2022-02-24 03:24:01,560 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) [2022-02-24 03:24:01,560 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 168 transitions. [2022-02-24 03:24:01,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-24 03:24:01,561 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:01,561 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] [2022-02-24 03:24:01,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 03:24:01,561 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:01,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:01,562 INFO L85 PathProgramCache]: Analyzing trace with hash 679609942, now seen corresponding path program 29 times [2022-02-24 03:24:01,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:01,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453191700] [2022-02-24 03:24:01,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:01,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:01,564 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:01,564 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 03:24:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 03:24:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:24:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:24:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:24:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:24:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:24:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:24:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:24:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:24:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:24:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:24:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:24:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:24:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:24:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:01,989 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:01,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453191700] [2022-02-24 03:24:01,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [453191700] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:01,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:01,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-24 03:24:01,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824946742] [2022-02-24 03:24:01,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:01,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-24 03:24:01,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:01,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-24 03:24:01,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2022-02-24 03:24:01,991 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) [2022-02-24 03:24:02,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:02,864 INFO L93 Difference]: Finished difference Result 242 states and 259 transitions. [2022-02-24 03:24:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-24 03:24:02,865 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 [2022-02-24 03:24:02,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:02,867 INFO L225 Difference]: With dead ends: 242 [2022-02-24 03:24:02,867 INFO L226 Difference]: Without dead ends: 170 [2022-02-24 03:24:02,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=943, Invalid=3749, Unknown=0, NotChecked=0, Total=4692 [2022-02-24 03:24:02,869 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 [2022-02-24 03:24:02,869 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] [2022-02-24 03:24:02,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-24 03:24:02,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 169. [2022-02-24 03:24:02,905 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) [2022-02-24 03:24:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 170 transitions. [2022-02-24 03:24:02,905 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 170 transitions. Word has length 164 [2022-02-24 03:24:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:02,906 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 170 transitions. [2022-02-24 03:24:02,906 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) [2022-02-24 03:24:02,906 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 170 transitions. [2022-02-24 03:24:02,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-24 03:24:02,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:02,907 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] [2022-02-24 03:24:02,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 03:24:02,907 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:02,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:02,908 INFO L85 PathProgramCache]: Analyzing trace with hash -817141580, now seen corresponding path program 30 times [2022-02-24 03:24:02,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:02,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887607781] [2022-02-24 03:24:02,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:02,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:02,910 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:02,910 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 03:24:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 03:24:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:24:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:24:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:24:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:24:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:24:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:24:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:24:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:24:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:24:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:24:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:24:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:24:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:24:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:03,675 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:03,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887607781] [2022-02-24 03:24:03,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1887607781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:03,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:03,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-24 03:24:03,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273946162] [2022-02-24 03:24:03,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:03,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-24 03:24:03,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:03,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-24 03:24:03,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1480, Unknown=0, NotChecked=0, Total=1560 [2022-02-24 03:24:03,676 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) [2022-02-24 03:24:06,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:06,015 INFO L93 Difference]: Finished difference Result 182 states and 183 transitions. [2022-02-24 03:24:06,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-24 03:24:06,018 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 [2022-02-24 03:24:06,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:06,019 INFO L225 Difference]: With dead ends: 182 [2022-02-24 03:24:06,019 INFO L226 Difference]: Without dead ends: 180 [2022-02-24 03:24:06,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=275, Invalid=5731, Unknown=0, NotChecked=0, Total=6006 [2022-02-24 03:24:06,020 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 105 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 4404 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:06,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 208 Invalid, 4510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4404 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-24 03:24:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-24 03:24:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2022-02-24 03:24:06,059 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) [2022-02-24 03:24:06,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2022-02-24 03:24:06,060 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 166 [2022-02-24 03:24:06,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:06,060 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2022-02-24 03:24:06,060 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) [2022-02-24 03:24:06,060 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2022-02-24 03:24:06,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-24 03:24:06,061 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:06,061 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] [2022-02-24 03:24:06,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 03:24:06,062 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:06,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:06,062 INFO L85 PathProgramCache]: Analyzing trace with hash -705832306, now seen corresponding path program 31 times [2022-02-24 03:24:06,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:06,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237126531] [2022-02-24 03:24:06,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:06,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:06,065 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:06,065 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 03:24:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 03:24:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:24:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:24:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:24:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:24:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:24:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:24:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:24:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:24:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:24:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:24:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:24:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:24:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:24:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:24:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:06,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:06,587 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:06,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237126531] [2022-02-24 03:24:06,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1237126531] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:06,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:06,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-24 03:24:06,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404427735] [2022-02-24 03:24:06,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:06,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-24 03:24:06,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:06,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-24 03:24:06,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-24 03:24:06,590 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) [2022-02-24 03:24:07,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:07,529 INFO L93 Difference]: Finished difference Result 256 states and 274 transitions. [2022-02-24 03:24:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-24 03:24:07,529 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 [2022-02-24 03:24:07,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:07,531 INFO L225 Difference]: With dead ends: 256 [2022-02-24 03:24:07,531 INFO L226 Difference]: Without dead ends: 180 [2022-02-24 03:24:07,532 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 [2022-02-24 03:24:07,532 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:07,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 122 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 03:24:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-24 03:24:07,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 179. [2022-02-24 03:24:07,567 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) [2022-02-24 03:24:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2022-02-24 03:24:07,568 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 174 [2022-02-24 03:24:07,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:07,568 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2022-02-24 03:24:07,568 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) [2022-02-24 03:24:07,568 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2022-02-24 03:24:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-24 03:24:07,569 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:07,569 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] [2022-02-24 03:24:07,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 03:24:07,570 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:07,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:07,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1914806420, now seen corresponding path program 32 times [2022-02-24 03:24:07,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:07,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993601207] [2022-02-24 03:24:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:07,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:07,572 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:07,573 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 03:24:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:24:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:24:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:24:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:24:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:24:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:24:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:24:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:24:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:24:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:24:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:24:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:24:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:24:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:24:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:24:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:08,357 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:08,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993601207] [2022-02-24 03:24:08,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1993601207] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:08,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:08,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-24 03:24:08,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922482040] [2022-02-24 03:24:08,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:08,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-24 03:24:08,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:08,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-24 03:24:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1638, Unknown=0, NotChecked=0, Total=1722 [2022-02-24 03:24:08,359 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) [2022-02-24 03:24:10,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:10,898 INFO L93 Difference]: Finished difference Result 192 states and 193 transitions. [2022-02-24 03:24:10,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-24 03:24:10,899 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 [2022-02-24 03:24:10,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:10,900 INFO L225 Difference]: With dead ends: 192 [2022-02-24 03:24:10,901 INFO L226 Difference]: Without dead ends: 190 [2022-02-24 03:24:10,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=289, Invalid=6353, Unknown=0, NotChecked=0, Total=6642 [2022-02-24 03:24:10,902 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 5048 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:10,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 223 Invalid, 5160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 5048 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-24 03:24:10,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-02-24 03:24:10,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-02-24 03:24:10,934 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) [2022-02-24 03:24:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 188 transitions. [2022-02-24 03:24:10,935 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 188 transitions. Word has length 176 [2022-02-24 03:24:10,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:10,936 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 188 transitions. [2022-02-24 03:24:10,936 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) [2022-02-24 03:24:10,936 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 188 transitions. [2022-02-24 03:24:10,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-02-24 03:24:10,937 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:10,937 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] [2022-02-24 03:24:10,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 03:24:10,937 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:10,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash 911907142, now seen corresponding path program 33 times [2022-02-24 03:24:10,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:10,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919674868] [2022-02-24 03:24:10,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:10,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:10,940 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:10,941 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 03:24:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:24:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:24:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:24:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:24:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:24:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:24:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:24:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:24:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:24:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:24:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:24:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:24:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:24:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:24:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:24:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:24:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:11,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:11,502 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:11,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919674868] [2022-02-24 03:24:11,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1919674868] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:11,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:11,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-24 03:24:11,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433936738] [2022-02-24 03:24:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:11,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-24 03:24:11,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-24 03:24:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2022-02-24 03:24:11,504 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) [2022-02-24 03:24:12,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:12,449 INFO L93 Difference]: Finished difference Result 270 states and 289 transitions. [2022-02-24 03:24:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-24 03:24:12,450 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 [2022-02-24 03:24:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:12,452 INFO L225 Difference]: With dead ends: 270 [2022-02-24 03:24:12,452 INFO L226 Difference]: Without dead ends: 190 [2022-02-24 03:24:12,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1167, Invalid=4685, Unknown=0, NotChecked=0, Total=5852 [2022-02-24 03:24:12,454 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 66 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-02-24 03:24:12,454 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] [2022-02-24 03:24:12,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-02-24 03:24:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 189. [2022-02-24 03:24:12,498 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) [2022-02-24 03:24:12,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 190 transitions. [2022-02-24 03:24:12,499 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 190 transitions. Word has length 184 [2022-02-24 03:24:12,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:12,500 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 190 transitions. [2022-02-24 03:24:12,500 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) [2022-02-24 03:24:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 190 transitions. [2022-02-24 03:24:12,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-02-24 03:24:12,501 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:12,501 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] [2022-02-24 03:24:12,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 03:24:12,501 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:12,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash -859234140, now seen corresponding path program 34 times [2022-02-24 03:24:12,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:12,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398488520] [2022-02-24 03:24:12,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:12,504 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:12,504 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 03:24:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:24:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:24:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:24:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:24:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:24:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:24:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:24:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:24:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:24:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:24:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:24:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:24:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:24:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:24:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:24:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:24:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:13,329 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:13,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398488520] [2022-02-24 03:24:13,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1398488520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:13,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:13,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-24 03:24:13,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811573677] [2022-02-24 03:24:13,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:13,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-24 03:24:13,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:13,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-24 03:24:13,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1804, Unknown=0, NotChecked=0, Total=1892 [2022-02-24 03:24:13,331 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) [2022-02-24 03:24:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:16,079 INFO L93 Difference]: Finished difference Result 202 states and 203 transitions. [2022-02-24 03:24:16,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-24 03:24:16,080 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 [2022-02-24 03:24:16,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:16,081 INFO L225 Difference]: With dead ends: 202 [2022-02-24 03:24:16,081 INFO L226 Difference]: Without dead ends: 200 [2022-02-24 03:24:16,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=303, Invalid=7007, Unknown=0, NotChecked=0, Total=7310 [2022-02-24 03:24:16,082 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 115 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 5657 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:16,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 238 Invalid, 5775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 5657 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-24 03:24:16,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-24 03:24:16,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2022-02-24 03:24:16,128 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) [2022-02-24 03:24:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 198 transitions. [2022-02-24 03:24:16,129 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 198 transitions. Word has length 186 [2022-02-24 03:24:16,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:16,129 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 198 transitions. [2022-02-24 03:24:16,130 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) [2022-02-24 03:24:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 198 transitions. [2022-02-24 03:24:16,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-02-24 03:24:16,131 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:16,131 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] [2022-02-24 03:24:16,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 03:24:16,131 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:16,131 INFO L85 PathProgramCache]: Analyzing trace with hash -236150146, now seen corresponding path program 35 times [2022-02-24 03:24:16,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:16,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152730741] [2022-02-24 03:24:16,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:16,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:16,134 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:16,134 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 03:24:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:24:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:24:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:24:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:24:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:24:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:24:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:24:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:24:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:24:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:24:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:24:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:24:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:24:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:24:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:24:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:24:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:24:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:16,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:16,695 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:16,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152730741] [2022-02-24 03:24:16,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [152730741] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:16,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:16,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-24 03:24:16,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110036782] [2022-02-24 03:24:16,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:16,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-24 03:24:16,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:16,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-24 03:24:16,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1316, Unknown=0, NotChecked=0, Total=1722 [2022-02-24 03:24:16,698 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) [2022-02-24 03:24:17,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:17,767 INFO L93 Difference]: Finished difference Result 284 states and 304 transitions. [2022-02-24 03:24:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-24 03:24:17,767 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 [2022-02-24 03:24:17,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:17,768 INFO L225 Difference]: With dead ends: 284 [2022-02-24 03:24:17,769 INFO L226 Difference]: Without dead ends: 200 [2022-02-24 03:24:17,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1475 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1288, Invalid=5192, Unknown=0, NotChecked=0, Total=6480 [2022-02-24 03:24:17,770 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 [2022-02-24 03:24:17,770 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] [2022-02-24 03:24:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-24 03:24:17,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2022-02-24 03:24:17,813 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) [2022-02-24 03:24:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 200 transitions. [2022-02-24 03:24:17,814 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 200 transitions. Word has length 194 [2022-02-24 03:24:17,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:17,814 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 200 transitions. [2022-02-24 03:24:17,814 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) [2022-02-24 03:24:17,814 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 200 transitions. [2022-02-24 03:24:17,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-24 03:24:17,815 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:17,815 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] [2022-02-24 03:24:17,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 03:24:17,816 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:17,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:17,816 INFO L85 PathProgramCache]: Analyzing trace with hash 488115292, now seen corresponding path program 36 times [2022-02-24 03:24:17,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:17,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130640026] [2022-02-24 03:24:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:17,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:17,819 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:17,819 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 03:24:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:24:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:24:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:24:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:24:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:24:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:24:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:24:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:24:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:24:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:24:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:24:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:24:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:24:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:24:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:24:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:24:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:24:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:18,753 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:18,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130640026] [2022-02-24 03:24:18,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2130640026] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:18,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:18,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-24 03:24:18,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135716075] [2022-02-24 03:24:18,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:18,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-24 03:24:18,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:18,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-24 03:24:18,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1978, Unknown=0, NotChecked=0, Total=2070 [2022-02-24 03:24:18,755 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) [2022-02-24 03:24:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:21,806 INFO L93 Difference]: Finished difference Result 212 states and 213 transitions. [2022-02-24 03:24:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-24 03:24:21,807 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 [2022-02-24 03:24:21,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:21,808 INFO L225 Difference]: With dead ends: 212 [2022-02-24 03:24:21,808 INFO L226 Difference]: Without dead ends: 210 [2022-02-24 03:24:21,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=317, Invalid=7693, Unknown=0, NotChecked=0, Total=8010 [2022-02-24 03:24:21,809 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 120 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 6234 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:21,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 249 Invalid, 6358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 6234 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-24 03:24:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-24 03:24:21,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2022-02-24 03:24:21,859 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) [2022-02-24 03:24:21,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 208 transitions. [2022-02-24 03:24:21,860 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 208 transitions. Word has length 196 [2022-02-24 03:24:21,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:21,860 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 208 transitions. [2022-02-24 03:24:21,860 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) [2022-02-24 03:24:21,861 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 208 transitions. [2022-02-24 03:24:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-24 03:24:21,861 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:21,862 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] [2022-02-24 03:24:21,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 03:24:21,862 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:21,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:21,862 INFO L85 PathProgramCache]: Analyzing trace with hash 2001753654, now seen corresponding path program 37 times [2022-02-24 03:24:21,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:21,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802111184] [2022-02-24 03:24:21,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:21,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:21,865 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:21,865 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 03:24:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:24:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:24:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:24:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:24:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:24:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:24:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:24:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:24:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:24:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:24:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:24:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:24:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:24:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:24:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:24:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:24:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:24:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:24:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:22,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:22,479 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:22,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802111184] [2022-02-24 03:24:22,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1802111184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:22,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:22,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-24 03:24:22,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124056324] [2022-02-24 03:24:22,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:22,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-24 03:24:22,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:22,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-24 03:24:22,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1445, Unknown=0, NotChecked=0, Total=1892 [2022-02-24 03:24:22,481 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) [2022-02-24 03:24:23,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:23,574 INFO L93 Difference]: Finished difference Result 298 states and 319 transitions. [2022-02-24 03:24:23,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-24 03:24:23,574 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 [2022-02-24 03:24:23,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:23,576 INFO L225 Difference]: With dead ends: 298 [2022-02-24 03:24:23,576 INFO L226 Difference]: Without dead ends: 210 [2022-02-24 03:24:23,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1415, Invalid=5725, Unknown=0, NotChecked=0, Total=7140 [2022-02-24 03:24:23,578 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 [2022-02-24 03:24:23,578 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] [2022-02-24 03:24:23,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-24 03:24:23,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2022-02-24 03:24:23,629 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) [2022-02-24 03:24:23,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 210 transitions. [2022-02-24 03:24:23,630 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 210 transitions. Word has length 204 [2022-02-24 03:24:23,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:23,630 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 210 transitions. [2022-02-24 03:24:23,630 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) [2022-02-24 03:24:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 210 transitions. [2022-02-24 03:24:23,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-02-24 03:24:23,631 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:23,631 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] [2022-02-24 03:24:23,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 03:24:23,632 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:23,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:23,632 INFO L85 PathProgramCache]: Analyzing trace with hash -731938156, now seen corresponding path program 38 times [2022-02-24 03:24:23,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:23,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677121063] [2022-02-24 03:24:23,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:23,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:23,635 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:23,635 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 03:24:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:24:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:24:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:24:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:24:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:24:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:24:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:24:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:24:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:24:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:24:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:24:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:24:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:24:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:24:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:24:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:24:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:24:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:24:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:24,662 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:24,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677121063] [2022-02-24 03:24:24,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1677121063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:24,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:24,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-24 03:24:24,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542332942] [2022-02-24 03:24:24,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:24,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-24 03:24:24,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:24,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-24 03:24:24,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=2160, Unknown=0, NotChecked=0, Total=2256 [2022-02-24 03:24:24,664 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) [2022-02-24 03:24:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:27,818 INFO L93 Difference]: Finished difference Result 222 states and 223 transitions. [2022-02-24 03:24:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-24 03:24:27,818 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 [2022-02-24 03:24:27,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:27,820 INFO L225 Difference]: With dead ends: 222 [2022-02-24 03:24:27,820 INFO L226 Difference]: Without dead ends: 220 [2022-02-24 03:24:27,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=331, Invalid=8411, Unknown=0, NotChecked=0, Total=8742 [2022-02-24 03:24:27,821 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 125 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 6616 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:27,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 252 Invalid, 6746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 6616 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-24 03:24:27,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-24 03:24:27,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2022-02-24 03:24:27,878 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) [2022-02-24 03:24:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 218 transitions. [2022-02-24 03:24:27,879 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 218 transitions. Word has length 206 [2022-02-24 03:24:27,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:27,879 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 218 transitions. [2022-02-24 03:24:27,879 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) [2022-02-24 03:24:27,879 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 218 transitions. [2022-02-24 03:24:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-24 03:24:27,880 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:27,880 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] [2022-02-24 03:24:27,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 03:24:27,881 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:27,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:27,881 INFO L85 PathProgramCache]: Analyzing trace with hash -239463314, now seen corresponding path program 39 times [2022-02-24 03:24:27,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:27,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147212575] [2022-02-24 03:24:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:27,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:27,884 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:27,884 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 03:24:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:24:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:24:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:24:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:24:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:24:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:24:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:24:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:24:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:24:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:24:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:24:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:24:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:24:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:24:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:24:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:24:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:24:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:24:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:24:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:28,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:28,584 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:28,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147212575] [2022-02-24 03:24:28,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [147212575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:28,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:28,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-24 03:24:28,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95071428] [2022-02-24 03:24:28,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:28,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-24 03:24:28,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-24 03:24:28,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-24 03:24:28,588 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) [2022-02-24 03:24:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:29,673 INFO L93 Difference]: Finished difference Result 312 states and 334 transitions. [2022-02-24 03:24:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-24 03:24:29,673 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 [2022-02-24 03:24:29,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:29,675 INFO L225 Difference]: With dead ends: 312 [2022-02-24 03:24:29,675 INFO L226 Difference]: Without dead ends: 220 [2022-02-24 03:24:29,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1799 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1548, Invalid=6284, Unknown=0, NotChecked=0, Total=7832 [2022-02-24 03:24:29,676 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 [2022-02-24 03:24:29,676 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] [2022-02-24 03:24:29,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-24 03:24:29,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 219. [2022-02-24 03:24:29,720 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) [2022-02-24 03:24:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2022-02-24 03:24:29,720 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 214 [2022-02-24 03:24:29,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:29,721 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2022-02-24 03:24:29,721 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) [2022-02-24 03:24:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2022-02-24 03:24:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-02-24 03:24:29,722 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:29,722 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] [2022-02-24 03:24:29,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 03:24:29,722 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:29,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:29,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2101615796, now seen corresponding path program 40 times [2022-02-24 03:24:29,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:29,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203175905] [2022-02-24 03:24:29,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:29,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:29,725 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:29,725 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:24:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:24:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:24:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:24:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:24:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:24:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:24:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:24:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:24:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:24:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:24:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:24:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:24:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:24:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:24:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:24:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:24:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:24:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:24:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:24:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:30,919 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:30,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203175905] [2022-02-24 03:24:30,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [203175905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:30,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:30,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-24 03:24:30,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366715508] [2022-02-24 03:24:30,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:30,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-24 03:24:30,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:30,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-24 03:24:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=2350, Unknown=0, NotChecked=0, Total=2450 [2022-02-24 03:24:30,921 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) [2022-02-24 03:24:34,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:34,319 INFO L93 Difference]: Finished difference Result 232 states and 233 transitions. [2022-02-24 03:24:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-24 03:24:34,320 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 [2022-02-24 03:24:34,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:34,321 INFO L225 Difference]: With dead ends: 232 [2022-02-24 03:24:34,321 INFO L226 Difference]: Without dead ends: 230 [2022-02-24 03:24:34,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=345, Invalid=9161, Unknown=0, NotChecked=0, Total=9506 [2022-02-24 03:24:34,322 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 130 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 7239 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:34,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 263 Invalid, 7375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 7239 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 03:24:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-02-24 03:24:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2022-02-24 03:24:34,380 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) [2022-02-24 03:24:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 228 transitions. [2022-02-24 03:24:34,381 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 228 transitions. Word has length 216 [2022-02-24 03:24:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:34,381 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 228 transitions. [2022-02-24 03:24:34,381 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) [2022-02-24 03:24:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 228 transitions. [2022-02-24 03:24:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-24 03:24:34,382 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:34,382 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] [2022-02-24 03:24:34,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 03:24:34,383 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:34,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1092207322, now seen corresponding path program 41 times [2022-02-24 03:24:34,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:34,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325113648] [2022-02-24 03:24:34,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:34,386 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:34,386 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 03:24:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:24:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:24:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:24:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:24:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:24:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:24:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:24:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:24:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:24:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:24:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:24:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:24:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:24:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:24:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:24:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:24:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:24:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:24:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:24:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:24:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:35,096 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:35,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325113648] [2022-02-24 03:24:35,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1325113648] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:35,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:35,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-24 03:24:35,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496550151] [2022-02-24 03:24:35,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:35,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-24 03:24:35,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-24 03:24:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=1721, Unknown=0, NotChecked=0, Total=2256 [2022-02-24 03:24:35,098 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) [2022-02-24 03:24:36,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:36,347 INFO L93 Difference]: Finished difference Result 326 states and 349 transitions. [2022-02-24 03:24:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-24 03:24:36,347 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 [2022-02-24 03:24:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:36,348 INFO L225 Difference]: With dead ends: 326 [2022-02-24 03:24:36,348 INFO L226 Difference]: Without dead ends: 230 [2022-02-24 03:24:36,350 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 [2022-02-24 03:24:36,350 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:36,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 107 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 03:24:36,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-02-24 03:24:36,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2022-02-24 03:24:36,407 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) [2022-02-24 03:24:36,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 230 transitions. [2022-02-24 03:24:36,408 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 230 transitions. Word has length 224 [2022-02-24 03:24:36,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:36,409 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 230 transitions. [2022-02-24 03:24:36,409 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) [2022-02-24 03:24:36,409 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 230 transitions. [2022-02-24 03:24:36,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-02-24 03:24:36,410 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:36,410 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] [2022-02-24 03:24:36,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 03:24:36,410 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:36,415 INFO L85 PathProgramCache]: Analyzing trace with hash -388919676, now seen corresponding path program 42 times [2022-02-24 03:24:36,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:36,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096679105] [2022-02-24 03:24:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:36,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:36,419 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:36,419 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:24:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:24:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:24:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:24:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:24:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:24:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:24:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:24:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:24:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:24:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:24:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:24:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:24:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:24:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:24:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:24:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:24:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:24:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:24:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:24:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:24:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:37,548 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:37,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096679105] [2022-02-24 03:24:37,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2096679105] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:37,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:37,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-24 03:24:37,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903627357] [2022-02-24 03:24:37,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:37,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-24 03:24:37,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:37,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-24 03:24:37,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=2548, Unknown=0, NotChecked=0, Total=2652 [2022-02-24 03:24:37,550 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) [2022-02-24 03:24:41,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:41,224 INFO L93 Difference]: Finished difference Result 242 states and 243 transitions. [2022-02-24 03:24:41,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-24 03:24:41,228 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 [2022-02-24 03:24:41,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:41,229 INFO L225 Difference]: With dead ends: 242 [2022-02-24 03:24:41,229 INFO L226 Difference]: Without dead ends: 240 [2022-02-24 03:24:41,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1349 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=359, Invalid=9943, Unknown=0, NotChecked=0, Total=10302 [2022-02-24 03:24:41,230 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 135 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 7890 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:41,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 274 Invalid, 8032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 7890 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 03:24:41,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-02-24 03:24:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 237. [2022-02-24 03:24:41,291 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) [2022-02-24 03:24:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 238 transitions. [2022-02-24 03:24:41,292 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 238 transitions. Word has length 226 [2022-02-24 03:24:41,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:41,293 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 238 transitions. [2022-02-24 03:24:41,293 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) [2022-02-24 03:24:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 238 transitions. [2022-02-24 03:24:41,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-02-24 03:24:41,294 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:41,294 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] [2022-02-24 03:24:41,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 03:24:41,294 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:41,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:41,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1696149598, now seen corresponding path program 43 times [2022-02-24 03:24:41,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:41,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132767200] [2022-02-24 03:24:41,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:41,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:41,298 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:41,298 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 03:24:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:24:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:24:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:24:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:24:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:24:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:24:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:24:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:24:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:24:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:24:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:24:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:24:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:24:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:24:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:24:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:24:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:24:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:24:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:24:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:24:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:24:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:42,093 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:42,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132767200] [2022-02-24 03:24:42,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1132767200] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:42,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:42,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-24 03:24:42,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623487317] [2022-02-24 03:24:42,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:42,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-24 03:24:42,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:42,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-24 03:24:42,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=582, Invalid=1868, Unknown=0, NotChecked=0, Total=2450 [2022-02-24 03:24:42,095 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) [2022-02-24 03:24:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:43,418 INFO L93 Difference]: Finished difference Result 340 states and 364 transitions. [2022-02-24 03:24:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-24 03:24:43,418 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 [2022-02-24 03:24:43,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:43,419 INFO L225 Difference]: With dead ends: 340 [2022-02-24 03:24:43,419 INFO L226 Difference]: Without dead ends: 240 [2022-02-24 03:24:43,420 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 [2022-02-24 03:24:43,421 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 [2022-02-24 03:24:43,421 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] [2022-02-24 03:24:43,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-02-24 03:24:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2022-02-24 03:24:43,467 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) [2022-02-24 03:24:43,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 240 transitions. [2022-02-24 03:24:43,468 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 240 transitions. Word has length 234 [2022-02-24 03:24:43,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:43,468 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 240 transitions. [2022-02-24 03:24:43,468 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) [2022-02-24 03:24:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 240 transitions. [2022-02-24 03:24:43,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-24 03:24:43,469 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:43,469 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] [2022-02-24 03:24:43,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 03:24:43,469 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:43,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:43,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1842144316, now seen corresponding path program 44 times [2022-02-24 03:24:43,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:43,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461085927] [2022-02-24 03:24:43,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:43,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:43,473 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:43,473 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:24:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:24:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:24:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:24:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:24:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:24:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:24:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:24:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:24:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:24:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:24:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:24:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:24:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:24:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:24:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:24:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:24:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:24:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:24:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:24:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:24:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:24:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:44,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:44,702 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:44,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461085927] [2022-02-24 03:24:44,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1461085927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:44,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:44,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-24 03:24:44,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761791037] [2022-02-24 03:24:44,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:44,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-24 03:24:44,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:44,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-24 03:24:44,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=2754, Unknown=0, NotChecked=0, Total=2862 [2022-02-24 03:24:44,704 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) [2022-02-24 03:24:48,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:48,669 INFO L93 Difference]: Finished difference Result 252 states and 253 transitions. [2022-02-24 03:24:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-24 03:24:48,669 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 [2022-02-24 03:24:48,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:48,671 INFO L225 Difference]: With dead ends: 252 [2022-02-24 03:24:48,671 INFO L226 Difference]: Without dead ends: 250 [2022-02-24 03:24:48,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1455 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=373, Invalid=10757, Unknown=0, NotChecked=0, Total=11130 [2022-02-24 03:24:48,672 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 140 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 8569 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:48,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 285 Invalid, 8717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 8569 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-02-24 03:24:48,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-24 03:24:48,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2022-02-24 03:24:48,742 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) [2022-02-24 03:24:48,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2022-02-24 03:24:48,743 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 236 [2022-02-24 03:24:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:48,743 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2022-02-24 03:24:48,744 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) [2022-02-24 03:24:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2022-02-24 03:24:48,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-02-24 03:24:48,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:48,745 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] [2022-02-24 03:24:48,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 03:24:48,745 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:48,746 INFO L85 PathProgramCache]: Analyzing trace with hash 153046550, now seen corresponding path program 45 times [2022-02-24 03:24:48,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:48,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003164006] [2022-02-24 03:24:48,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:48,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:48,749 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:48,749 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 03:24:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:24:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:24:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:24:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:24:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:24:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:24:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:24:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:24:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:24:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:24:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:24:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:24:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:24:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:24:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:24:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:24:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:24:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:24:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:24:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:24:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:24:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:24:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:49,561 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:49,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003164006] [2022-02-24 03:24:49,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1003164006] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:49,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:49,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-24 03:24:49,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539684013] [2022-02-24 03:24:49,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:49,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-24 03:24:49,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:49,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-24 03:24:49,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=631, Invalid=2021, Unknown=0, NotChecked=0, Total=2652 [2022-02-24 03:24:49,563 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) [2022-02-24 03:24:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:50,883 INFO L93 Difference]: Finished difference Result 354 states and 379 transitions. [2022-02-24 03:24:50,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-24 03:24:50,884 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 [2022-02-24 03:24:50,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:50,885 INFO L225 Difference]: With dead ends: 354 [2022-02-24 03:24:50,885 INFO L226 Difference]: Without dead ends: 250 [2022-02-24 03:24:50,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2345 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1983, Invalid=8117, Unknown=0, NotChecked=0, Total=10100 [2022-02-24 03:24:50,887 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 78 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-02-24 03:24:50,887 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] [2022-02-24 03:24:50,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-24 03:24:50,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2022-02-24 03:24:50,959 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) [2022-02-24 03:24:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2022-02-24 03:24:50,960 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 244 [2022-02-24 03:24:50,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:50,960 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2022-02-24 03:24:50,960 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) [2022-02-24 03:24:50,961 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2022-02-24 03:24:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-02-24 03:24:50,962 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:50,962 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] [2022-02-24 03:24:50,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 03:24:50,962 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:50,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:50,962 INFO L85 PathProgramCache]: Analyzing trace with hash 358761588, now seen corresponding path program 46 times [2022-02-24 03:24:50,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:50,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87031549] [2022-02-24 03:24:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:50,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:50,966 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:50,966 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:24:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:24:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:24:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:24:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:24:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:24:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:24:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:24:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:24:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:24:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:24:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:24:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:24:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:24:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:24:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:24:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:24:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:24:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:24:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:24:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:24:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:24:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:24:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:52,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:52,276 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:52,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87031549] [2022-02-24 03:24:52,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [87031549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:52,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:52,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-24 03:24:52,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905555032] [2022-02-24 03:24:52,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:52,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-24 03:24:52,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:52,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-24 03:24:52,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=2968, Unknown=0, NotChecked=0, Total=3080 [2022-02-24 03:24:52,278 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) [2022-02-24 03:24:56,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:56,562 INFO L93 Difference]: Finished difference Result 262 states and 263 transitions. [2022-02-24 03:24:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-24 03:24:56,562 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 [2022-02-24 03:24:56,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:56,563 INFO L225 Difference]: With dead ends: 262 [2022-02-24 03:24:56,564 INFO L226 Difference]: Without dead ends: 260 [2022-02-24 03:24:56,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=387, Invalid=11603, Unknown=0, NotChecked=0, Total=11990 [2022-02-24 03:24:56,565 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 145 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 9276 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:56,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 296 Invalid, 9430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 9276 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-24 03:24:56,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-02-24 03:24:56,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2022-02-24 03:24:56,647 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) [2022-02-24 03:24:56,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 258 transitions. [2022-02-24 03:24:56,648 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 258 transitions. Word has length 246 [2022-02-24 03:24:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:56,648 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 258 transitions. [2022-02-24 03:24:56,648 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) [2022-02-24 03:24:56,648 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 258 transitions. [2022-02-24 03:24:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-02-24 03:24:56,649 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:56,649 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] [2022-02-24 03:24:56,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 03:24:56,650 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:56,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:56,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1682765390, now seen corresponding path program 47 times [2022-02-24 03:24:56,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:56,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270227528] [2022-02-24 03:24:56,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:56,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:56,653 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:56,653 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:24:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 03:24:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:24:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:24:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:24:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:24:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:24:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:24:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:24:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:24:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:24:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:24:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:24:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:24:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:24:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:24:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:24:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:24:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:24:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:24:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:24:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:24:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:24:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:24:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:24:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:24:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:24:57,511 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:24:57,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270227528] [2022-02-24 03:24:57,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [270227528] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:24:57,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:24:57,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-24 03:24:57,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575640694] [2022-02-24 03:24:57,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:24:57,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-24 03:24:57,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:24:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-24 03:24:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=682, Invalid=2180, Unknown=0, NotChecked=0, Total=2862 [2022-02-24 03:24:57,513 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) [2022-02-24 03:24:58,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:24:58,939 INFO L93 Difference]: Finished difference Result 368 states and 394 transitions. [2022-02-24 03:24:58,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-24 03:24:58,939 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 [2022-02-24 03:24:58,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:24:58,940 INFO L225 Difference]: With dead ends: 368 [2022-02-24 03:24:58,940 INFO L226 Difference]: Without dead ends: 260 [2022-02-24 03:24:58,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2543 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2140, Invalid=8780, Unknown=0, NotChecked=0, Total=10920 [2022-02-24 03:24:58,942 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 80 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:24:58,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 118 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 03:24:58,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-02-24 03:24:59,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 259. [2022-02-24 03:24:59,016 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) [2022-02-24 03:24:59,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 260 transitions. [2022-02-24 03:24:59,017 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 260 transitions. Word has length 254 [2022-02-24 03:24:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:24:59,017 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 260 transitions. [2022-02-24 03:24:59,017 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) [2022-02-24 03:24:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 260 transitions. [2022-02-24 03:24:59,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-02-24 03:24:59,018 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:24:59,019 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] [2022-02-24 03:24:59,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 03:24:59,019 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:24:59,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:24:59,019 INFO L85 PathProgramCache]: Analyzing trace with hash -171045076, now seen corresponding path program 48 times [2022-02-24 03:24:59,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:24:59,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884865597] [2022-02-24 03:24:59,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:24:59,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:24:59,023 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:24:59,023 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:24:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:25:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:25:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:25:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:25:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:25:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:25:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:25:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:25:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:25:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:25:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:25:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:25:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:25:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:25:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:25:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:25:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:25:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:25:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:25:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:25:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:25:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:25:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:25:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:25:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:00,406 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:00,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884865597] [2022-02-24 03:25:00,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1884865597] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:00,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:00,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-24 03:25:00,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434795873] [2022-02-24 03:25:00,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:00,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-24 03:25:00,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:00,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-24 03:25:00,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=3190, Unknown=0, NotChecked=0, Total=3306 [2022-02-24 03:25:00,407 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) [2022-02-24 03:25:05,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:05,031 INFO L93 Difference]: Finished difference Result 272 states and 273 transitions. [2022-02-24 03:25:05,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-24 03:25:05,032 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 [2022-02-24 03:25:05,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:05,033 INFO L225 Difference]: With dead ends: 272 [2022-02-24 03:25:05,033 INFO L226 Difference]: Without dead ends: 270 [2022-02-24 03:25:05,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1679 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=401, Invalid=12481, Unknown=0, NotChecked=0, Total=12882 [2022-02-24 03:25:05,034 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 150 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 10096 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 3.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:25:05,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 311 Invalid, 10256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 10096 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-24 03:25:05,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-24 03:25:05,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 267. [2022-02-24 03:25:05,099 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) [2022-02-24 03:25:05,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 268 transitions. [2022-02-24 03:25:05,100 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 268 transitions. Word has length 256 [2022-02-24 03:25:05,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:05,100 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 268 transitions. [2022-02-24 03:25:05,101 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) [2022-02-24 03:25:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 268 transitions. [2022-02-24 03:25:05,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-02-24 03:25:05,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:05,102 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] [2022-02-24 03:25:05,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 03:25:05,102 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:05,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:05,103 INFO L85 PathProgramCache]: Analyzing trace with hash 981371142, now seen corresponding path program 49 times [2022-02-24 03:25:05,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:05,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594811727] [2022-02-24 03:25:05,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:05,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:05,106 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:05,106 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 03:25:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:25:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:25:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:25:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:25:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:25:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:25:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:25:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:25:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:25:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:25:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:25:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:25:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:25:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:25:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:25:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:25:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:25:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:25:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:25:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:25:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:25:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:25:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:25:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:25:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:05,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:05,983 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:05,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594811727] [2022-02-24 03:25:05,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [594811727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:05,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:05,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-24 03:25:05,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128461531] [2022-02-24 03:25:05,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:05,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-24 03:25:05,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:05,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-24 03:25:05,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=735, Invalid=2345, Unknown=0, NotChecked=0, Total=3080 [2022-02-24 03:25:05,985 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) [2022-02-24 03:25:07,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:07,568 INFO L93 Difference]: Finished difference Result 382 states and 409 transitions. [2022-02-24 03:25:07,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-24 03:25:07,569 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 [2022-02-24 03:25:07,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:07,570 INFO L225 Difference]: With dead ends: 382 [2022-02-24 03:25:07,570 INFO L226 Difference]: Without dead ends: 270 [2022-02-24 03:25:07,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2749 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2303, Invalid=9469, Unknown=0, NotChecked=0, Total=11772 [2022-02-24 03:25:07,572 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 82 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:25:07,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 115 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 03:25:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-24 03:25:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 269. [2022-02-24 03:25:07,626 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) [2022-02-24 03:25:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 270 transitions. [2022-02-24 03:25:07,627 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 270 transitions. Word has length 264 [2022-02-24 03:25:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:07,627 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 270 transitions. [2022-02-24 03:25:07,628 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) [2022-02-24 03:25:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 270 transitions. [2022-02-24 03:25:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-02-24 03:25:07,629 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:07,629 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] [2022-02-24 03:25:07,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 03:25:07,629 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:07,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:07,630 INFO L85 PathProgramCache]: Analyzing trace with hash 768910436, now seen corresponding path program 50 times [2022-02-24 03:25:07,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:07,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32415376] [2022-02-24 03:25:07,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:07,638 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:07,638 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:25:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:25:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:25:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:25:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:25:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:25:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:25:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:25:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:25:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:25:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:25:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:25:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:25:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:25:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:25:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:25:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:25:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:25:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:25:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:25:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:25:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:25:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:25:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:25:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:25:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:09,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:09,095 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:09,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32415376] [2022-02-24 03:25:09,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [32415376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:09,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:09,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-24 03:25:09,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871487476] [2022-02-24 03:25:09,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:09,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-24 03:25:09,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:09,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-24 03:25:09,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=3420, Unknown=0, NotChecked=0, Total=3540 [2022-02-24 03:25:09,097 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) [2022-02-24 03:25:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:14,058 INFO L93 Difference]: Finished difference Result 282 states and 283 transitions. [2022-02-24 03:25:14,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-24 03:25:14,058 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 [2022-02-24 03:25:14,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:14,059 INFO L225 Difference]: With dead ends: 282 [2022-02-24 03:25:14,059 INFO L226 Difference]: Without dead ends: 280 [2022-02-24 03:25:14,060 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 [2022-02-24 03:25:14,061 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 155 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 10883 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 3.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:25:14,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 318 Invalid, 11049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 10883 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-24 03:25:14,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-24 03:25:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2022-02-24 03:25:14,130 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) [2022-02-24 03:25:14,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 278 transitions. [2022-02-24 03:25:14,130 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 278 transitions. Word has length 266 [2022-02-24 03:25:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:14,131 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 278 transitions. [2022-02-24 03:25:14,131 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) [2022-02-24 03:25:14,131 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 278 transitions. [2022-02-24 03:25:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-02-24 03:25:14,132 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:14,132 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] [2022-02-24 03:25:14,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 03:25:14,132 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:14,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:14,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1343776318, now seen corresponding path program 51 times [2022-02-24 03:25:14,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:14,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076135713] [2022-02-24 03:25:14,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:14,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:14,136 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:14,136 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 03:25:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:25:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:25:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:25:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:25:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:25:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:25:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:25:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:25:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:25:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:25:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:25:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:25:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:25:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:25:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:25:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:25:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:25:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:25:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:25:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:25:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:25:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:25:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:25:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:25:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:25:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:15,105 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:15,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076135713] [2022-02-24 03:25:15,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1076135713] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:15,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:15,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-24 03:25:15,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608906829] [2022-02-24 03:25:15,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:15,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-24 03:25:15,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-24 03:25:15,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=790, Invalid=2516, Unknown=0, NotChecked=0, Total=3306 [2022-02-24 03:25:15,107 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) [2022-02-24 03:25:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:16,643 INFO L93 Difference]: Finished difference Result 396 states and 424 transitions. [2022-02-24 03:25:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-24 03:25:16,643 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 [2022-02-24 03:25:16,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:16,645 INFO L225 Difference]: With dead ends: 396 [2022-02-24 03:25:16,645 INFO L226 Difference]: Without dead ends: 280 [2022-02-24 03:25:16,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2472, Invalid=10184, Unknown=0, NotChecked=0, Total=12656 [2022-02-24 03:25:16,646 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 84 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:25:16,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 97 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 03:25:16,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-24 03:25:16,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 279. [2022-02-24 03:25:16,746 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) [2022-02-24 03:25:16,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 280 transitions. [2022-02-24 03:25:16,747 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 280 transitions. Word has length 274 [2022-02-24 03:25:16,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:16,747 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 280 transitions. [2022-02-24 03:25:16,748 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) [2022-02-24 03:25:16,748 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 280 transitions. [2022-02-24 03:25:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-02-24 03:25:16,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:16,749 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] [2022-02-24 03:25:16,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 03:25:16,749 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:16,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:16,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1522689052, now seen corresponding path program 52 times [2022-02-24 03:25:16,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:16,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335747771] [2022-02-24 03:25:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:16,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:16,753 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:16,753 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:25:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:25:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:25:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:25:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:25:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:25:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:25:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:25:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:25:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:25:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:25:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:25:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:25:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:25:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:25:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:25:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:25:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:25:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:25:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:25:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:25:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:25:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:25:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:25:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:25:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:25:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:18,345 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:18,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335747771] [2022-02-24 03:25:18,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1335747771] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:18,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:18,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-24 03:25:18,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490410605] [2022-02-24 03:25:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:18,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-24 03:25:18,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-24 03:25:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=3658, Unknown=0, NotChecked=0, Total=3782 [2022-02-24 03:25:18,347 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) [2022-02-24 03:25:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:23,774 INFO L93 Difference]: Finished difference Result 292 states and 293 transitions. [2022-02-24 03:25:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-24 03:25:23,775 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 [2022-02-24 03:25:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:23,776 INFO L225 Difference]: With dead ends: 292 [2022-02-24 03:25:23,776 INFO L226 Difference]: Without dead ends: 290 [2022-02-24 03:25:23,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1919 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=429, Invalid=14333, Unknown=0, NotChecked=0, Total=14762 [2022-02-24 03:25:23,777 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 160 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 11768 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:25:23,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 333 Invalid, 11940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 11768 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 03:25:23,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-02-24 03:25:23,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 287. [2022-02-24 03:25:23,841 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) [2022-02-24 03:25:23,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 288 transitions. [2022-02-24 03:25:23,841 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 288 transitions. Word has length 276 [2022-02-24 03:25:23,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:23,842 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 288 transitions. [2022-02-24 03:25:23,842 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) [2022-02-24 03:25:23,842 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 288 transitions. [2022-02-24 03:25:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-02-24 03:25:23,844 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:23,844 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] [2022-02-24 03:25:23,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 03:25:23,844 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:23,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:23,844 INFO L85 PathProgramCache]: Analyzing trace with hash -536416778, now seen corresponding path program 53 times [2022-02-24 03:25:23,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:23,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880650758] [2022-02-24 03:25:23,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:23,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:23,848 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:23,848 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 03:25:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:25:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:25:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:25:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:25:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:25:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:25:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:25:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:25:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:25:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:25:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:25:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:25:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:25:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:25:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:25:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:25:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:25:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:25:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:25:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:25:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:25:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:25:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:25:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:25:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:25:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:25:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:24,844 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:24,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880650758] [2022-02-24 03:25:24,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [880650758] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:24,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:24,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-24 03:25:24,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899854048] [2022-02-24 03:25:24,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:24,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-24 03:25:24,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:24,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-24 03:25:24,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=847, Invalid=2693, Unknown=0, NotChecked=0, Total=3540 [2022-02-24 03:25:24,846 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) [2022-02-24 03:25:26,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:26,520 INFO L93 Difference]: Finished difference Result 410 states and 439 transitions. [2022-02-24 03:25:26,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-24 03:25:26,521 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 [2022-02-24 03:25:26,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:26,522 INFO L225 Difference]: With dead ends: 410 [2022-02-24 03:25:26,522 INFO L226 Difference]: Without dead ends: 290 [2022-02-24 03:25:26,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3185 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2647, Invalid=10925, Unknown=0, NotChecked=0, Total=13572 [2022-02-24 03:25:26,524 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 [2022-02-24 03:25:26,524 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] [2022-02-24 03:25:26,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-02-24 03:25:26,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 289. [2022-02-24 03:25:26,615 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) [2022-02-24 03:25:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 290 transitions. [2022-02-24 03:25:26,616 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 290 transitions. Word has length 284 [2022-02-24 03:25:26,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:26,616 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 290 transitions. [2022-02-24 03:25:26,616 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) [2022-02-24 03:25:26,616 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 290 transitions. [2022-02-24 03:25:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-02-24 03:25:26,618 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:26,618 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] [2022-02-24 03:25:26,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-24 03:25:26,618 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:26,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:26,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1905545644, now seen corresponding path program 54 times [2022-02-24 03:25:26,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:26,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287684055] [2022-02-24 03:25:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:26,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:26,622 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:26,622 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:25:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:25:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:25:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:25:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:25:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:25:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:25:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:25:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:25:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:25:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:25:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:25:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:25:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:25:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:25:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:25:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:25:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:25:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:25:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:25:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:25:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:25:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:25:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:25:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:25:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:25:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:25:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:28,462 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:28,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287684055] [2022-02-24 03:25:28,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1287684055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:28,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:28,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-24 03:25:28,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599620704] [2022-02-24 03:25:28,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:28,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-24 03:25:28,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:28,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-24 03:25:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=3904, Unknown=0, NotChecked=0, Total=4032 [2022-02-24 03:25:28,465 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) [2022-02-24 03:25:34,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:34,195 INFO L93 Difference]: Finished difference Result 302 states and 303 transitions. [2022-02-24 03:25:34,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-24 03:25:34,196 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 [2022-02-24 03:25:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:34,197 INFO L225 Difference]: With dead ends: 302 [2022-02-24 03:25:34,197 INFO L226 Difference]: Without dead ends: 300 [2022-02-24 03:25:34,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2045 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=443, Invalid=15307, Unknown=0, NotChecked=0, Total=15750 [2022-02-24 03:25:34,198 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 12594 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:25:34,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 344 Invalid, 12772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 12594 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-24 03:25:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-24 03:25:34,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 297. [2022-02-24 03:25:34,277 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) [2022-02-24 03:25:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 298 transitions. [2022-02-24 03:25:34,277 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 298 transitions. Word has length 286 [2022-02-24 03:25:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:34,278 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 298 transitions. [2022-02-24 03:25:34,278 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) [2022-02-24 03:25:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 298 transitions. [2022-02-24 03:25:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-02-24 03:25:34,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:34,279 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] [2022-02-24 03:25:34,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 03:25:34,280 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:34,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1849786322, now seen corresponding path program 55 times [2022-02-24 03:25:34,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:34,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349733877] [2022-02-24 03:25:34,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:34,284 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:34,284 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 03:25:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:25:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:25:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:25:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:25:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:25:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:25:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:25:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:25:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:25:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:25:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:25:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:25:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:25:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:25:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:25:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:25:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:25:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:25:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:25:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:25:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:25:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:25:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:25:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:25:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:25:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:25:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:25:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:35,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:35,362 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:35,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349733877] [2022-02-24 03:25:35,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1349733877] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:35,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:35,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-24 03:25:35,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533128239] [2022-02-24 03:25:35,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:35,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-24 03:25:35,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:35,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-24 03:25:35,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=906, Invalid=2876, Unknown=0, NotChecked=0, Total=3782 [2022-02-24 03:25:35,364 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) [2022-02-24 03:25:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:37,072 INFO L93 Difference]: Finished difference Result 424 states and 454 transitions. [2022-02-24 03:25:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-24 03:25:37,072 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 [2022-02-24 03:25:37,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:37,073 INFO L225 Difference]: With dead ends: 424 [2022-02-24 03:25:37,073 INFO L226 Difference]: Without dead ends: 300 [2022-02-24 03:25:37,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3415 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2828, Invalid=11692, Unknown=0, NotChecked=0, Total=14520 [2022-02-24 03:25:37,075 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 [2022-02-24 03:25:37,075 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] [2022-02-24 03:25:37,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-24 03:25:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2022-02-24 03:25:37,142 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) [2022-02-24 03:25:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 300 transitions. [2022-02-24 03:25:37,143 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 300 transitions. Word has length 294 [2022-02-24 03:25:37,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:37,143 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 300 transitions. [2022-02-24 03:25:37,144 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) [2022-02-24 03:25:37,144 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 300 transitions. [2022-02-24 03:25:37,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-02-24 03:25:37,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:37,145 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] [2022-02-24 03:25:37,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-24 03:25:37,145 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:37,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:37,146 INFO L85 PathProgramCache]: Analyzing trace with hash -986914036, now seen corresponding path program 56 times [2022-02-24 03:25:37,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:37,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729370] [2022-02-24 03:25:37,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:37,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:37,149 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:37,150 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:25:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:25:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:25:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:25:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:25:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:25:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:25:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:25:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:25:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:25:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:25:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:25:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:25:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:25:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:25:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:25:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:25:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:25:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:25:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:25:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:25:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:25:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:25:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:25:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:25:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:25:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:25:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:25:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:38,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:38,845 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:38,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729370] [2022-02-24 03:25:38,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [729370] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:38,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:38,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-24 03:25:38,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934790234] [2022-02-24 03:25:38,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:38,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-24 03:25:38,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:38,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-24 03:25:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=4158, Unknown=0, NotChecked=0, Total=4290 [2022-02-24 03:25:38,847 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) [2022-02-24 03:25:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:44,879 INFO L93 Difference]: Finished difference Result 312 states and 313 transitions. [2022-02-24 03:25:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-24 03:25:44,880 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 [2022-02-24 03:25:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:44,881 INFO L225 Difference]: With dead ends: 312 [2022-02-24 03:25:44,881 INFO L226 Difference]: Without dead ends: 310 [2022-02-24 03:25:44,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2175 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=457, Invalid=16313, Unknown=0, NotChecked=0, Total=16770 [2022-02-24 03:25:44,882 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 13327 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:25:44,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 355 Invalid, 13511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 13327 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-24 03:25:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-02-24 03:25:44,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 307. [2022-02-24 03:25:44,978 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) [2022-02-24 03:25:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 308 transitions. [2022-02-24 03:25:44,978 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 308 transitions. Word has length 296 [2022-02-24 03:25:44,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:44,978 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 308 transitions. [2022-02-24 03:25:44,979 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) [2022-02-24 03:25:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 308 transitions. [2022-02-24 03:25:44,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-02-24 03:25:44,980 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:44,980 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] [2022-02-24 03:25:44,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-24 03:25:44,980 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:44,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:44,981 INFO L85 PathProgramCache]: Analyzing trace with hash -281314074, now seen corresponding path program 57 times [2022-02-24 03:25:44,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:44,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720389714] [2022-02-24 03:25:44,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:44,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:44,985 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:44,985 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 03:25:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:25:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:25:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:25:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:25:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:25:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:25:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:25:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:25:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:25:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:25:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:25:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:25:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:25:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:25:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:25:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:25:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:25:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:25:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:25:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:25:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:25:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:25:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:25:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:25:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:25:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:25:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:25:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:25:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:46,095 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:46,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720389714] [2022-02-24 03:25:46,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1720389714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:46,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:46,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-24 03:25:46,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849745266] [2022-02-24 03:25:46,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:46,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-24 03:25:46,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:46,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-24 03:25:46,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2022-02-24 03:25:46,097 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) [2022-02-24 03:25:47,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:47,993 INFO L93 Difference]: Finished difference Result 438 states and 469 transitions. [2022-02-24 03:25:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-24 03:25:47,993 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 [2022-02-24 03:25:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:47,994 INFO L225 Difference]: With dead ends: 438 [2022-02-24 03:25:47,994 INFO L226 Difference]: Without dead ends: 310 [2022-02-24 03:25:47,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3653 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3015, Invalid=12485, Unknown=0, NotChecked=0, Total=15500 [2022-02-24 03:25:47,996 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 [2022-02-24 03:25:47,996 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] [2022-02-24 03:25:47,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-02-24 03:25:48,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 309. [2022-02-24 03:25:48,075 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) [2022-02-24 03:25:48,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 310 transitions. [2022-02-24 03:25:48,076 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 310 transitions. Word has length 304 [2022-02-24 03:25:48,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:48,076 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 310 transitions. [2022-02-24 03:25:48,076 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) [2022-02-24 03:25:48,076 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 310 transitions. [2022-02-24 03:25:48,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-02-24 03:25:48,077 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:48,077 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] [2022-02-24 03:25:48,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-24 03:25:48,078 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:48,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:48,078 INFO L85 PathProgramCache]: Analyzing trace with hash -605396412, now seen corresponding path program 58 times [2022-02-24 03:25:48,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:48,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198209918] [2022-02-24 03:25:48,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:48,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:48,081 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:48,081 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:25:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:25:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:25:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:25:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:25:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:25:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:25:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:25:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:25:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:25:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:25:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:25:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:25:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:25:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:25:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:25:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:25:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:25:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:25:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:25:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:25:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:25:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:25:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:25:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:25:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:25:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:25:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:25:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:25:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:49,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:49,952 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:49,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198209918] [2022-02-24 03:25:49,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1198209918] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:49,952 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:49,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-24 03:25:49,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2418214] [2022-02-24 03:25:49,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:49,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-24 03:25:49,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:49,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-24 03:25:49,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=4420, Unknown=0, NotChecked=0, Total=4556 [2022-02-24 03:25:49,954 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) [2022-02-24 03:25:56,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:56,507 INFO L93 Difference]: Finished difference Result 322 states and 323 transitions. [2022-02-24 03:25:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-24 03:25:56,507 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 [2022-02-24 03:25:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:56,509 INFO L225 Difference]: With dead ends: 322 [2022-02-24 03:25:56,509 INFO L226 Difference]: Without dead ends: 320 [2022-02-24 03:25:56,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2309 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=471, Invalid=17351, Unknown=0, NotChecked=0, Total=17822 [2022-02-24 03:25:56,510 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 14205 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 4.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:25:56,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 366 Invalid, 14395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 14205 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-24 03:25:56,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-24 03:25:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 317. [2022-02-24 03:25:56,597 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) [2022-02-24 03:25:56,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 318 transitions. [2022-02-24 03:25:56,598 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 318 transitions. Word has length 306 [2022-02-24 03:25:56,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:56,598 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 318 transitions. [2022-02-24 03:25:56,598 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) [2022-02-24 03:25:56,598 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 318 transitions. [2022-02-24 03:25:56,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-02-24 03:25:56,599 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:56,599 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] [2022-02-24 03:25:56,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-24 03:25:56,600 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:56,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1526875166, now seen corresponding path program 59 times [2022-02-24 03:25:56,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:56,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68748720] [2022-02-24 03:25:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:56,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:56,604 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:56,604 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:25:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 03:25:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:25:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:25:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:25:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:25:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:25:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:25:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:25:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:25:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:25:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:25:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:25:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:25:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:25:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:25:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:25:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:25:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:25:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:25:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:25:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:25:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:25:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:25:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:25:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:25:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:25:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:25:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:25:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:25:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:25:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:25:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:25:57,760 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:25:57,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68748720] [2022-02-24 03:25:57,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [68748720] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:25:57,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:25:57,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-24 03:25:57,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761927632] [2022-02-24 03:25:57,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:25:57,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-24 03:25:57,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:25:57,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-24 03:25:57,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1030, Invalid=3260, Unknown=0, NotChecked=0, Total=4290 [2022-02-24 03:25:57,762 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) [2022-02-24 03:25:59,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:25:59,566 INFO L93 Difference]: Finished difference Result 452 states and 484 transitions. [2022-02-24 03:25:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-24 03:25:59,567 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 [2022-02-24 03:25:59,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:25:59,568 INFO L225 Difference]: With dead ends: 452 [2022-02-24 03:25:59,568 INFO L226 Difference]: Without dead ends: 320 [2022-02-24 03:25:59,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3899 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3208, Invalid=13304, Unknown=0, NotChecked=0, Total=16512 [2022-02-24 03:25:59,570 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 [2022-02-24 03:25:59,570 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] [2022-02-24 03:25:59,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-24 03:25:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 319. [2022-02-24 03:25:59,657 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) [2022-02-24 03:25:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 320 transitions. [2022-02-24 03:25:59,658 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 320 transitions. Word has length 314 [2022-02-24 03:25:59,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:25:59,658 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 320 transitions. [2022-02-24 03:25:59,658 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) [2022-02-24 03:25:59,658 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 320 transitions. [2022-02-24 03:25:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-02-24 03:25:59,659 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:25:59,660 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] [2022-02-24 03:25:59,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-24 03:25:59,660 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:25:59,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:25:59,660 INFO L85 PathProgramCache]: Analyzing trace with hash 101747708, now seen corresponding path program 60 times [2022-02-24 03:25:59,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:25:59,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269120609] [2022-02-24 03:25:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:25:59,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:25:59,664 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:25:59,664 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:25:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:26:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:26:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:26:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:26:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:26:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:26:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:26:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:26:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:26:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:26:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:26:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:26:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:26:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:26:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:26:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:26:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:26:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:26:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:26:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:26:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:26:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:26:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:26:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:26:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:26:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:26:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:26:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:26:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:26:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:26:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:01,671 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:01,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269120609] [2022-02-24 03:26:01,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1269120609] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:01,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:01,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-24 03:26:01,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774671613] [2022-02-24 03:26:01,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:01,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-24 03:26:01,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:01,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-24 03:26:01,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=4690, Unknown=0, NotChecked=0, Total=4830 [2022-02-24 03:26:01,673 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) [2022-02-24 03:26:08,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:26:08,491 INFO L93 Difference]: Finished difference Result 332 states and 333 transitions. [2022-02-24 03:26:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-24 03:26:08,491 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 [2022-02-24 03:26:08,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:26:08,492 INFO L225 Difference]: With dead ends: 332 [2022-02-24 03:26:08,492 INFO L226 Difference]: Without dead ends: 330 [2022-02-24 03:26:08,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2447 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=485, Invalid=18421, Unknown=0, NotChecked=0, Total=18906 [2022-02-24 03:26:08,493 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 180 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 15009 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:26:08,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 373 Invalid, 15205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 15009 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-24 03:26:08,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-24 03:26:08,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 327. [2022-02-24 03:26:08,572 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) [2022-02-24 03:26:08,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 328 transitions. [2022-02-24 03:26:08,573 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 328 transitions. Word has length 316 [2022-02-24 03:26:08,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:26:08,573 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 328 transitions. [2022-02-24 03:26:08,573 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) [2022-02-24 03:26:08,573 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 328 transitions. [2022-02-24 03:26:08,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-02-24 03:26:08,574 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:26:08,574 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] [2022-02-24 03:26:08,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-24 03:26:08,575 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:26:08,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:26:08,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2044774954, now seen corresponding path program 61 times [2022-02-24 03:26:08,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:26:08,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669661759] [2022-02-24 03:26:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:26:08,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:26:08,579 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:26:08,579 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:26:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 03:26:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:26:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:26:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:26:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:26:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:26:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:26:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:26:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:26:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:26:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:26:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:26:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:26:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:26:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:26:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:26:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:26:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:26:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:26:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:26:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:26:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:26:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:26:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:26:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:26:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:26:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:26:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:26:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:26:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:26:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:26:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:09,814 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:09,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669661759] [2022-02-24 03:26:09,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [669661759] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:09,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:09,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-24 03:26:09,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438907419] [2022-02-24 03:26:09,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:09,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-24 03:26:09,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:09,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-24 03:26:09,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1095, Invalid=3461, Unknown=0, NotChecked=0, Total=4556 [2022-02-24 03:26:09,816 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) [2022-02-24 03:26:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:26:11,812 INFO L93 Difference]: Finished difference Result 466 states and 499 transitions. [2022-02-24 03:26:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-24 03:26:11,812 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 [2022-02-24 03:26:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:26:11,813 INFO L225 Difference]: With dead ends: 466 [2022-02-24 03:26:11,813 INFO L226 Difference]: Without dead ends: 330 [2022-02-24 03:26:11,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4153 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3407, Invalid=14149, Unknown=0, NotChecked=0, Total=17556 [2022-02-24 03:26:11,815 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 94 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-24 03:26:11,815 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] [2022-02-24 03:26:11,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-24 03:26:11,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 329. [2022-02-24 03:26:11,895 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) [2022-02-24 03:26:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 330 transitions. [2022-02-24 03:26:11,896 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 330 transitions. Word has length 324 [2022-02-24 03:26:11,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:26:11,896 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 330 transitions. [2022-02-24 03:26:11,896 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) [2022-02-24 03:26:11,896 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 330 transitions. [2022-02-24 03:26:11,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-02-24 03:26:11,897 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:26:11,898 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] [2022-02-24 03:26:11,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-24 03:26:11,898 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:26:11,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:26:11,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1013727180, now seen corresponding path program 62 times [2022-02-24 03:26:11,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:26:11,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941732394] [2022-02-24 03:26:11,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:26:11,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:26:11,902 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:26:11,902 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:26:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:26:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:26:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:26:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:26:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:26:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:26:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:26:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:26:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:26:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:26:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:26:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:26:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:26:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:26:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:26:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:26:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:26:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:26:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:26:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:26:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:26:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:26:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:26:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:26:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:26:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:26:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:26:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:26:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:26:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:26:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:26:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:13,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:13,960 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:13,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941732394] [2022-02-24 03:26:13,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [941732394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:13,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:13,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-24 03:26:13,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508914675] [2022-02-24 03:26:13,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:13,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-24 03:26:13,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:13,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-24 03:26:13,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=4968, Unknown=0, NotChecked=0, Total=5112 [2022-02-24 03:26:13,962 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) [2022-02-24 03:26:21,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:26:21,274 INFO L93 Difference]: Finished difference Result 342 states and 343 transitions. [2022-02-24 03:26:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-24 03:26:21,275 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 [2022-02-24 03:26:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:26:21,276 INFO L225 Difference]: With dead ends: 342 [2022-02-24 03:26:21,276 INFO L226 Difference]: Without dead ends: 340 [2022-02-24 03:26:21,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2589 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=499, Invalid=19523, Unknown=0, NotChecked=0, Total=20022 [2022-02-24 03:26:21,277 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 185 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 15941 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:26:21,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 384 Invalid, 16143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 15941 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 03:26:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-02-24 03:26:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2022-02-24 03:26:21,365 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) [2022-02-24 03:26:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 338 transitions. [2022-02-24 03:26:21,366 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 338 transitions. Word has length 326 [2022-02-24 03:26:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:26:21,366 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 338 transitions. [2022-02-24 03:26:21,366 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) [2022-02-24 03:26:21,366 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 338 transitions. [2022-02-24 03:26:21,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-02-24 03:26:21,368 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:26:21,368 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] [2022-02-24 03:26:21,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-24 03:26:21,368 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:26:21,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:26:21,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1713811982, now seen corresponding path program 63 times [2022-02-24 03:26:21,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:26:21,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078075817] [2022-02-24 03:26:21,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:26:21,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:26:21,371 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:26:21,371 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:26:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 03:26:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:26:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:26:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:26:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:26:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:26:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:26:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:26:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:26:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:26:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:26:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:26:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:26:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:26:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:26:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:26:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:26:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:26:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:26:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:26:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:26:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:26:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:26:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:26:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:26:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:26:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:26:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:26:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:26:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:26:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:26:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:26:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:22,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:22,668 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:22,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078075817] [2022-02-24 03:26:22,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1078075817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:22,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:22,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-24 03:26:22,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137557803] [2022-02-24 03:26:22,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:22,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-24 03:26:22,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:22,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-24 03:26:22,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1162, Invalid=3668, Unknown=0, NotChecked=0, Total=4830 [2022-02-24 03:26:22,670 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) [2022-02-24 03:26:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:26:24,966 INFO L93 Difference]: Finished difference Result 480 states and 514 transitions. [2022-02-24 03:26:24,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-24 03:26:24,966 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 [2022-02-24 03:26:24,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:26:24,967 INFO L225 Difference]: With dead ends: 480 [2022-02-24 03:26:24,967 INFO L226 Difference]: Without dead ends: 340 [2022-02-24 03:26:24,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4415 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3612, Invalid=15020, Unknown=0, NotChecked=0, Total=18632 [2022-02-24 03:26:24,969 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 [2022-02-24 03:26:24,969 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] [2022-02-24 03:26:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-02-24 03:26:25,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 339. [2022-02-24 03:26:25,063 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) [2022-02-24 03:26:25,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 340 transitions. [2022-02-24 03:26:25,064 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 340 transitions. Word has length 334 [2022-02-24 03:26:25,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:26:25,064 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 340 transitions. [2022-02-24 03:26:25,064 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) [2022-02-24 03:26:25,064 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 340 transitions. [2022-02-24 03:26:25,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-02-24 03:26:25,066 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:26:25,066 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] [2022-02-24 03:26:25,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-24 03:26:25,066 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:26:25,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:26:25,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1458593516, now seen corresponding path program 64 times [2022-02-24 03:26:25,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:26:25,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508722392] [2022-02-24 03:26:25,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:26:25,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:26:25,092 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:26:25,092 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:26:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:26:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:26:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:26:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:26:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:26:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:26:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:26:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:26:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:26:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:26:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:26:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:26:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:26:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:26:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:26:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:26:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:26:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:26:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:26:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:26:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:26:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:26:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:26:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:26:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:26:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:26:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:26:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:26:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:26:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:26:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:26:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:26:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:27,253 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:27,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508722392] [2022-02-24 03:26:27,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1508722392] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:27,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:27,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-24 03:26:27,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245842775] [2022-02-24 03:26:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:27,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-24 03:26:27,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:27,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-24 03:26:27,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=5254, Unknown=0, NotChecked=0, Total=5402 [2022-02-24 03:26:27,255 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) [2022-02-24 03:26:34,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:26:34,919 INFO L93 Difference]: Finished difference Result 352 states and 353 transitions. [2022-02-24 03:26:34,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-24 03:26:34,920 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 [2022-02-24 03:26:34,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:26:34,921 INFO L225 Difference]: With dead ends: 352 [2022-02-24 03:26:34,921 INFO L226 Difference]: Without dead ends: 350 [2022-02-24 03:26:34,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2735 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=513, Invalid=20657, Unknown=0, NotChecked=0, Total=21170 [2022-02-24 03:26:34,922 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 190 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 16899 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 5.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:26:34,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 395 Invalid, 17107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 16899 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-24 03:26:34,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-02-24 03:26:35,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 347. [2022-02-24 03:26:35,012 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) [2022-02-24 03:26:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 348 transitions. [2022-02-24 03:26:35,013 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 348 transitions. Word has length 336 [2022-02-24 03:26:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:26:35,013 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 348 transitions. [2022-02-24 03:26:35,013 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) [2022-02-24 03:26:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 348 transitions. [2022-02-24 03:26:35,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-02-24 03:26:35,015 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:26:35,015 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] [2022-02-24 03:26:35,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-24 03:26:35,015 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:26:35,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:26:35,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1422583610, now seen corresponding path program 65 times [2022-02-24 03:26:35,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:26:35,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713537901] [2022-02-24 03:26:35,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:26:35,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:26:35,019 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:26:35,019 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:26:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 03:26:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:26:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:26:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:26:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:26:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:26:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:26:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:26:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:26:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:26:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:26:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:26:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:26:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:26:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:26:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:26:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:26:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:26:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:26:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:26:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:26:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:26:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:26:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:26:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:26:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:26:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:26:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:26:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:26:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:26:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:26:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:26:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:26:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:36,376 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:36,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713537901] [2022-02-24 03:26:36,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [713537901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:36,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:36,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-24 03:26:36,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597872529] [2022-02-24 03:26:36,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:36,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-24 03:26:36,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:36,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-24 03:26:36,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1231, Invalid=3881, Unknown=0, NotChecked=0, Total=5112 [2022-02-24 03:26:36,378 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) [2022-02-24 03:26:38,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:26:38,782 INFO L93 Difference]: Finished difference Result 494 states and 529 transitions. [2022-02-24 03:26:38,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-24 03:26:38,782 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 [2022-02-24 03:26:38,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:26:38,784 INFO L225 Difference]: With dead ends: 494 [2022-02-24 03:26:38,784 INFO L226 Difference]: Without dead ends: 350 [2022-02-24 03:26:38,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4685 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3823, Invalid=15917, Unknown=0, NotChecked=0, Total=19740 [2022-02-24 03:26:38,786 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 98 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-24 03:26:38,786 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] [2022-02-24 03:26:38,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-02-24 03:26:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2022-02-24 03:26:38,885 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) [2022-02-24 03:26:38,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 350 transitions. [2022-02-24 03:26:38,886 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 350 transitions. Word has length 344 [2022-02-24 03:26:38,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:26:38,886 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 350 transitions. [2022-02-24 03:26:38,886 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) [2022-02-24 03:26:38,886 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 350 transitions. [2022-02-24 03:26:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-02-24 03:26:38,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:26:38,887 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] [2022-02-24 03:26:38,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-24 03:26:38,888 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:26:38,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:26:38,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1154824156, now seen corresponding path program 66 times [2022-02-24 03:26:38,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:26:38,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634838654] [2022-02-24 03:26:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:26:38,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:26:38,891 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:26:38,891 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:26:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:26:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:26:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:26:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:26:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:26:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:26:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:26:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:26:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:26:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:26:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:26:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:26:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:26:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:26:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:26:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:26:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:26:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:26:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:26:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:26:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:26:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:26:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:26:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:26:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:26:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:26:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:26:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:26:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:26:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:26:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:26:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:26:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:26:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:41,161 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:41,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634838654] [2022-02-24 03:26:41,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [634838654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:41,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:41,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-24 03:26:41,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694981647] [2022-02-24 03:26:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:41,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-24 03:26:41,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:41,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-24 03:26:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=5548, Unknown=0, NotChecked=0, Total=5700 [2022-02-24 03:26:41,164 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) [2022-02-24 03:26:49,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:26:49,576 INFO L93 Difference]: Finished difference Result 362 states and 363 transitions. [2022-02-24 03:26:49,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-24 03:26:49,576 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 [2022-02-24 03:26:49,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:26:49,578 INFO L225 Difference]: With dead ends: 362 [2022-02-24 03:26:49,578 INFO L226 Difference]: Without dead ends: 360 [2022-02-24 03:26:49,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2885 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=527, Invalid=21823, Unknown=0, NotChecked=0, Total=22350 [2022-02-24 03:26:49,579 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 195 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 18249 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s 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, 5.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:26:49,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 414 Invalid, 18463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 18249 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-02-24 03:26:49,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-24 03:26:49,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 357. [2022-02-24 03:26:49,677 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) [2022-02-24 03:26:49,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 358 transitions. [2022-02-24 03:26:49,678 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 358 transitions. Word has length 346 [2022-02-24 03:26:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:26:49,678 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 358 transitions. [2022-02-24 03:26:49,678 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) [2022-02-24 03:26:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 358 transitions. [2022-02-24 03:26:49,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-02-24 03:26:49,680 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:26:49,680 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] [2022-02-24 03:26:49,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-24 03:26:49,680 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:26:49,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:26:49,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1242641922, now seen corresponding path program 67 times [2022-02-24 03:26:49,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:26:49,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150703658] [2022-02-24 03:26:49,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:26:49,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:26:49,684 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:26:49,684 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:26:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 03:26:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:26:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:26:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:26:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:26:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:26:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:26:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:26:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:26:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:26:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:26:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:26:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:26:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:26:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:26:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:26:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:26:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:26:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:26:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:26:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:26:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:26:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:26:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:26:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:26:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:26:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:26:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:26:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:26:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:26:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:26:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:26:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:26:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:26:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:51,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:51,108 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:51,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150703658] [2022-02-24 03:26:51,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1150703658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:51,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:51,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-24 03:26:51,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116076580] [2022-02-24 03:26:51,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:51,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-24 03:26:51,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:51,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-24 03:26:51,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1302, Invalid=4100, Unknown=0, NotChecked=0, Total=5402 [2022-02-24 03:26:51,110 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) [2022-02-24 03:26:53,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:26:53,515 INFO L93 Difference]: Finished difference Result 508 states and 544 transitions. [2022-02-24 03:26:53,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-24 03:26:53,515 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 [2022-02-24 03:26:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:26:53,517 INFO L225 Difference]: With dead ends: 508 [2022-02-24 03:26:53,517 INFO L226 Difference]: Without dead ends: 360 [2022-02-24 03:26:53,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4963 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4040, Invalid=16840, Unknown=0, NotChecked=0, Total=20880 [2022-02-24 03:26:53,518 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 [2022-02-24 03:26:53,519 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] [2022-02-24 03:26:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-24 03:26:53,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 359. [2022-02-24 03:26:53,665 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) [2022-02-24 03:26:53,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 360 transitions. [2022-02-24 03:26:53,665 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 360 transitions. Word has length 354 [2022-02-24 03:26:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:26:53,665 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 360 transitions. [2022-02-24 03:26:53,666 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) [2022-02-24 03:26:53,666 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 360 transitions. [2022-02-24 03:26:53,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-02-24 03:26:53,667 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:26:53,667 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] [2022-02-24 03:26:53,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-24 03:26:53,667 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:26:53,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:26:53,667 INFO L85 PathProgramCache]: Analyzing trace with hash 433019868, now seen corresponding path program 68 times [2022-02-24 03:26:53,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:26:53,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792337365] [2022-02-24 03:26:53,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:26:53,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:26:53,671 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:26:53,672 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:26:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:26:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:26:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:26:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:26:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:26:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:26:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:26:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:26:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:26:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:26:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:26:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:26:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:26:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:26:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:26:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:26:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:26:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:26:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:26:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:26:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:26:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:26:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:26:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:26:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:26:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:26:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:26:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:26:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:26:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:26:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:26:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:26:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:26:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:26:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:26:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:26:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:26:56,078 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:26:56,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792337365] [2022-02-24 03:26:56,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1792337365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:26:56,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:26:56,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-24 03:26:56,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429727904] [2022-02-24 03:26:56,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:26:56,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-24 03:26:56,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:26:56,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-24 03:26:56,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=5850, Unknown=0, NotChecked=0, Total=6006 [2022-02-24 03:26:56,081 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) [2022-02-24 03:27:04,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:27:04,685 INFO L93 Difference]: Finished difference Result 372 states and 373 transitions. [2022-02-24 03:27:04,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-24 03:27:04,687 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 [2022-02-24 03:27:04,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:27:04,689 INFO L225 Difference]: With dead ends: 372 [2022-02-24 03:27:04,689 INFO L226 Difference]: Without dead ends: 370 [2022-02-24 03:27:04,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3039 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=541, Invalid=23021, Unknown=0, NotChecked=0, Total=23562 [2022-02-24 03:27:04,691 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 200 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 19160 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s 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, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:27:04,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 421 Invalid, 19380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 19160 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 03:27:04,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-02-24 03:27:04,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 367. [2022-02-24 03:27:04,808 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) [2022-02-24 03:27:04,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 368 transitions. [2022-02-24 03:27:04,809 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 368 transitions. Word has length 356 [2022-02-24 03:27:04,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:27:04,809 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 368 transitions. [2022-02-24 03:27:04,809 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) [2022-02-24 03:27:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 368 transitions. [2022-02-24 03:27:04,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-02-24 03:27:04,810 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:27:04,810 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] [2022-02-24 03:27:04,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-24 03:27:04,811 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:27:04,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:27:04,811 INFO L85 PathProgramCache]: Analyzing trace with hash 226502070, now seen corresponding path program 69 times [2022-02-24 03:27:04,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:27:04,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000022931] [2022-02-24 03:27:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:27:04,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:27:04,815 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:27:04,815 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:27:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:27:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 03:27:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:27:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:27:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:27:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:27:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:27:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:27:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:27:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:27:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:27:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:27:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:27:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:27:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:27:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:27:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:27:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:27:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:27:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:27:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:27:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:27:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:27:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:27:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:27:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:27:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:27:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:27:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:27:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:27:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:27:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:27:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:27:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:27:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:27:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:27:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:27:06,432 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:27:06,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000022931] [2022-02-24 03:27:06,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2000022931] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:27:06,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:27:06,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-24 03:27:06,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628504538] [2022-02-24 03:27:06,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:27:06,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-24 03:27:06,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:27:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-24 03:27:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1375, Invalid=4325, Unknown=0, NotChecked=0, Total=5700 [2022-02-24 03:27:06,434 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) [2022-02-24 03:27:08,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:27:08,904 INFO L93 Difference]: Finished difference Result 522 states and 559 transitions. [2022-02-24 03:27:08,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-24 03:27:08,904 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 [2022-02-24 03:27:08,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:27:08,906 INFO L225 Difference]: With dead ends: 522 [2022-02-24 03:27:08,906 INFO L226 Difference]: Without dead ends: 370 [2022-02-24 03:27:08,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5249 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4263, Invalid=17789, Unknown=0, NotChecked=0, Total=22052 [2022-02-24 03:27:08,908 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 102 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:27:08,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 135 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 03:27:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-02-24 03:27:09,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2022-02-24 03:27:09,047 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) [2022-02-24 03:27:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 370 transitions. [2022-02-24 03:27:09,048 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 370 transitions. Word has length 364 [2022-02-24 03:27:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:27:09,048 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 370 transitions. [2022-02-24 03:27:09,048 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) [2022-02-24 03:27:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 370 transitions. [2022-02-24 03:27:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-02-24 03:27:09,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:27:09,050 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] [2022-02-24 03:27:09,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-24 03:27:09,050 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:27:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:27:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1057850860, now seen corresponding path program 70 times [2022-02-24 03:27:09,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:27:09,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125218899] [2022-02-24 03:27:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:27:09,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:27:09,054 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:27:09,054 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:27:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:27:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:27:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:27:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:27:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:27:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:27:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:27:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:27:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:27:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:27:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:27:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:27:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:27:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:27:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:27:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:27:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:27:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:27:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:27:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:27:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:27:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:27:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:27:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:27:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:27:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:27:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:27:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:27:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:27:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:27:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:27:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:27:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:27:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:27:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:27:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:27:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:11,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:27:11,493 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:27:11,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125218899] [2022-02-24 03:27:11,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [125218899] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:27:11,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:27:11,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-02-24 03:27:11,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880840445] [2022-02-24 03:27:11,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:27:11,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-24 03:27:11,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:27:11,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-24 03:27:11,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=6160, Unknown=0, NotChecked=0, Total=6320 [2022-02-24 03:27:11,495 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) [2022-02-24 03:27:20,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:27:20,524 INFO L93 Difference]: Finished difference Result 382 states and 383 transitions. [2022-02-24 03:27:20,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-24 03:27:20,524 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 [2022-02-24 03:27:20,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:27:20,525 INFO L225 Difference]: With dead ends: 382 [2022-02-24 03:27:20,525 INFO L226 Difference]: Without dead ends: 380 [2022-02-24 03:27:20,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3197 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=555, Invalid=24251, Unknown=0, NotChecked=0, Total=24806 [2022-02-24 03:27:20,527 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 205 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 19944 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 20170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 19944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:27:20,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 428 Invalid, 20170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 19944 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 03:27:20,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-24 03:27:20,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 377. [2022-02-24 03:27:20,643 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) [2022-02-24 03:27:20,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 378 transitions. [2022-02-24 03:27:20,644 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 378 transitions. Word has length 366 [2022-02-24 03:27:20,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:27:20,644 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 378 transitions. [2022-02-24 03:27:20,644 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) [2022-02-24 03:27:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 378 transitions. [2022-02-24 03:27:20,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-02-24 03:27:20,646 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:27:20,646 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] [2022-02-24 03:27:20,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-24 03:27:20,646 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:27:20,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:27:20,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1436388334, now seen corresponding path program 71 times [2022-02-24 03:27:20,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:27:20,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761017321] [2022-02-24 03:27:20,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:27:20,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:27:20,649 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:27:20,649 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:27:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:27:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 03:27:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:27:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:27:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:27:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:27:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:27:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:27:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:27:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:27:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:27:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:27:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:27:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:27:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:27:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:27:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:27:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:27:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:27:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:27:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:27:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:27:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:27:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:27:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:27:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:27:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:27:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:27:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:27:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:27:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:27:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:27:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:27:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:27:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:27:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:27:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:27:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:27:22,280 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:27:22,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761017321] [2022-02-24 03:27:22,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1761017321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:27:22,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:27:22,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-24 03:27:22,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949312814] [2022-02-24 03:27:22,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:27:22,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-24 03:27:22,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:27:22,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-24 03:27:22,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1450, Invalid=4556, Unknown=0, NotChecked=0, Total=6006 [2022-02-24 03:27:22,283 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) [2022-02-24 03:27:24,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:27:24,844 INFO L93 Difference]: Finished difference Result 536 states and 574 transitions. [2022-02-24 03:27:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-24 03:27:24,844 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 [2022-02-24 03:27:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:27:24,846 INFO L225 Difference]: With dead ends: 536 [2022-02-24 03:27:24,846 INFO L226 Difference]: Without dead ends: 380 [2022-02-24 03:27:24,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5543 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4492, Invalid=18764, Unknown=0, NotChecked=0, Total=23256 [2022-02-24 03:27:24,847 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 104 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:27:24,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 132 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 03:27:24,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-24 03:27:24,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 379. [2022-02-24 03:27:24,961 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) [2022-02-24 03:27:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 380 transitions. [2022-02-24 03:27:24,962 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 380 transitions. Word has length 374 [2022-02-24 03:27:24,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:27:24,962 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 380 transitions. [2022-02-24 03:27:24,962 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) [2022-02-24 03:27:24,962 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 380 transitions. [2022-02-24 03:27:24,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2022-02-24 03:27:24,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:27:24,963 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] [2022-02-24 03:27:24,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-24 03:27:24,964 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:27:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:27:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1724874036, now seen corresponding path program 72 times [2022-02-24 03:27:24,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:27:24,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794985393] [2022-02-24 03:27:24,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:27:24,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:27:24,967 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:27:24,967 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:27:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:27:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:27:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:27:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:27:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:27:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:27:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:27:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:27:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:27:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:27:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:27:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:27:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:27:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:27:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:27:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:27:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:27:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:27:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:27:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:27:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:27:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:27:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:27:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:27:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:27:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:27:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:27:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:27:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:27:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:27:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:27:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:27:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:27:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:27:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:27:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:27:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:27:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:27,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:27:27,608 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:27:27,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794985393] [2022-02-24 03:27:27,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [794985393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:27:27,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:27:27,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-02-24 03:27:27,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933787977] [2022-02-24 03:27:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:27:27,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-24 03:27:27,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:27:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-24 03:27:27,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=6478, Unknown=0, NotChecked=0, Total=6642 [2022-02-24 03:27:27,610 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) [2022-02-24 03:27:37,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:27:37,135 INFO L93 Difference]: Finished difference Result 392 states and 393 transitions. [2022-02-24 03:27:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-24 03:27:37,136 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 [2022-02-24 03:27:37,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:27:37,137 INFO L225 Difference]: With dead ends: 392 [2022-02-24 03:27:37,137 INFO L226 Difference]: Without dead ends: 390 [2022-02-24 03:27:37,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3359 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=569, Invalid=25513, Unknown=0, NotChecked=0, Total=26082 [2022-02-24 03:27:37,139 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 210 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 21016 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s 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, 6.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:27:37,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 439 Invalid, 21248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 21016 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-02-24 03:27:37,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-24 03:27:37,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 387. [2022-02-24 03:27:37,260 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) [2022-02-24 03:27:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 388 transitions. [2022-02-24 03:27:37,260 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 388 transitions. Word has length 376 [2022-02-24 03:27:37,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:27:37,260 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 388 transitions. [2022-02-24 03:27:37,261 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) [2022-02-24 03:27:37,261 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 388 transitions. [2022-02-24 03:27:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-02-24 03:27:37,262 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:27:37,262 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] [2022-02-24 03:27:37,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-24 03:27:37,262 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:27:37,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:27:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash -998024026, now seen corresponding path program 73 times [2022-02-24 03:27:37,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:27:37,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070433628] [2022-02-24 03:27:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:27:37,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:27:37,266 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:27:37,266 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:27:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:27:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 03:27:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:27:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:27:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:27:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:27:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:27:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:27:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:27:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:27:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:27:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:27:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:27:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:27:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:27:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:27:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:27:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:27:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:27:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:27:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:27:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:27:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:27:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:27:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:27:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:27:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:27:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:27:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:27:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:27:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:27:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:27:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:27:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:27:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:27:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:27:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:27:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:27:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:27:38,951 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:27:38,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070433628] [2022-02-24 03:27:38,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2070433628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:27:38,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:27:38,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-02-24 03:27:38,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648188539] [2022-02-24 03:27:38,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:27:38,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-24 03:27:38,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:27:38,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-24 03:27:38,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1527, Invalid=4793, Unknown=0, NotChecked=0, Total=6320 [2022-02-24 03:27:38,953 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) [2022-02-24 03:27:41,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:27:41,970 INFO L93 Difference]: Finished difference Result 550 states and 589 transitions. [2022-02-24 03:27:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-24 03:27:41,970 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 [2022-02-24 03:27:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:27:41,971 INFO L225 Difference]: With dead ends: 550 [2022-02-24 03:27:41,971 INFO L226 Difference]: Without dead ends: 390 [2022-02-24 03:27:41,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5845 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=4727, Invalid=19765, Unknown=0, NotChecked=0, Total=24492 [2022-02-24 03:27:41,973 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 106 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:27:41,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 154 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 03:27:41,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-24 03:27:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 389. [2022-02-24 03:27:42,087 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) [2022-02-24 03:27:42,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 390 transitions. [2022-02-24 03:27:42,088 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 390 transitions. Word has length 384 [2022-02-24 03:27:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:27:42,088 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 390 transitions. [2022-02-24 03:27:42,088 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) [2022-02-24 03:27:42,088 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 390 transitions. [2022-02-24 03:27:42,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-02-24 03:27:42,090 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:27:42,090 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] [2022-02-24 03:27:42,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-24 03:27:42,090 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:27:42,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:27:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash 464377348, now seen corresponding path program 74 times [2022-02-24 03:27:42,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:27:42,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825354317] [2022-02-24 03:27:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:27:42,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:27:42,094 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:27:42,094 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:27:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:27:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:27:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:27:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:27:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:27:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:27:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:27:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:27:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:27:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:27:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:27:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:27:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:27:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:27:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:27:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:27:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:27:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:27:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:27:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:27:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:27:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:27:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:27:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:27:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:27:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:27:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:27:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:27:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:27:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:27:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:27:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:27:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:27:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:27:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:27:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:27:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:27:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:27:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:27:44,840 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:27:44,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825354317] [2022-02-24 03:27:44,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [825354317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:27:44,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:27:44,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-02-24 03:27:44,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545085246] [2022-02-24 03:27:44,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:27:44,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-24 03:27:44,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:27:44,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-24 03:27:44,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=6804, Unknown=0, NotChecked=0, Total=6972 [2022-02-24 03:27:44,842 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) [2022-02-24 03:27:54,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:27:54,861 INFO L93 Difference]: Finished difference Result 402 states and 403 transitions. [2022-02-24 03:27:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-24 03:27:54,862 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 [2022-02-24 03:27:54,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:27:54,863 INFO L225 Difference]: With dead ends: 402 [2022-02-24 03:27:54,863 INFO L226 Difference]: Without dead ends: 400 [2022-02-24 03:27:54,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3525 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=583, Invalid=26807, Unknown=0, NotChecked=0, Total=27390 [2022-02-24 03:27:54,865 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 215 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 22237 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s 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, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:27:54,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 454 Invalid, 22475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 22237 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 03:27:54,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-02-24 03:27:54,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 397. [2022-02-24 03:27:54,990 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) [2022-02-24 03:27:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 398 transitions. [2022-02-24 03:27:54,991 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 398 transitions. Word has length 386 [2022-02-24 03:27:54,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:27:54,991 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 398 transitions. [2022-02-24 03:27:54,991 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) [2022-02-24 03:27:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 398 transitions. [2022-02-24 03:27:54,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-02-24 03:27:54,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:27:54,993 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] [2022-02-24 03:27:54,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-24 03:27:54,994 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:27:54,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:27:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash 418772958, now seen corresponding path program 75 times [2022-02-24 03:27:54,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:27:54,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830338363] [2022-02-24 03:27:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:27:54,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:27:54,998 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:27:54,998 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:27:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:27:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 03:27:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:27:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:27:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:27:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:27:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:27:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:27:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:27:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:27:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:27:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:27:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:27:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:27:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:27:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:27:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:27:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:27:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:27:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:27:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:27:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:27:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:27:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:27:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:27:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:27:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:27:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:27:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:27:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:27:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:27:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:27:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:27:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:27:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:27:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:27:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:27:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:27:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 03:27:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:27:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:27:56,747 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:27:56,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830338363] [2022-02-24 03:27:56,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1830338363] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:27:56,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:27:56,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-02-24 03:27:56,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099569306] [2022-02-24 03:27:56,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:27:56,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-24 03:27:56,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:27:56,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-24 03:27:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=5036, Unknown=0, NotChecked=0, Total=6642 [2022-02-24 03:27:56,749 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) [2022-02-24 03:27:59,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:27:59,621 INFO L93 Difference]: Finished difference Result 564 states and 604 transitions. [2022-02-24 03:27:59,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-24 03:27:59,621 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 [2022-02-24 03:27:59,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:27:59,622 INFO L225 Difference]: With dead ends: 564 [2022-02-24 03:27:59,622 INFO L226 Difference]: Without dead ends: 400 [2022-02-24 03:27:59,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6155 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4968, Invalid=20792, Unknown=0, NotChecked=0, Total=25760 [2022-02-24 03:27:59,624 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 108 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:27:59,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 131 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 03:27:59,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-02-24 03:27:59,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 399. [2022-02-24 03:27:59,750 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) [2022-02-24 03:27:59,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 400 transitions. [2022-02-24 03:27:59,751 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 400 transitions. Word has length 394 [2022-02-24 03:27:59,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:27:59,751 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 400 transitions. [2022-02-24 03:27:59,751 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) [2022-02-24 03:27:59,751 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 400 transitions. [2022-02-24 03:27:59,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-02-24 03:27:59,753 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:27:59,753 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] [2022-02-24 03:27:59,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-24 03:27:59,753 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:27:59,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:27:59,753 INFO L85 PathProgramCache]: Analyzing trace with hash -938028100, now seen corresponding path program 76 times [2022-02-24 03:27:59,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:27:59,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490556350] [2022-02-24 03:27:59,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:27:59,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:27:59,757 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:27:59,757 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:27:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:28:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:28:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:28:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:28:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:28:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:28:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:28:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:28:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:28:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:28:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:28:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:28:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:28:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:28:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:28:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:28:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:28:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:28:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:28:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:28:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:28:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:28:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:28:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:28:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:28:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:28:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:28:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:28:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:28:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:28:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:28:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:28:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:28:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:28:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:28:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 03:28:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 03:28:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 03:28:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 03:28:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:28:02,575 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:28:02,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490556350] [2022-02-24 03:28:02,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1490556350] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:28:02,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:28:02,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [] total 86 [2022-02-24 03:28:02,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224863328] [2022-02-24 03:28:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:28:02,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-24 03:28:02,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:28:02,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-24 03:28:02,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=7138, Unknown=0, NotChecked=0, Total=7310 [2022-02-24 03:28:02,577 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) [2022-02-24 03:28:13,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:28:13,065 INFO L93 Difference]: Finished difference Result 412 states and 413 transitions. [2022-02-24 03:28:13,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-02-24 03:28:13,065 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 [2022-02-24 03:28:13,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:28:13,067 INFO L225 Difference]: With dead ends: 412 [2022-02-24 03:28:13,067 INFO L226 Difference]: Without dead ends: 410 [2022-02-24 03:28:13,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3695 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=597, Invalid=28133, Unknown=0, NotChecked=0, Total=28730 [2022-02-24 03:28:13,069 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 220 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 23402 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s 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, 7.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:28:13,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 461 Invalid, 23646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 23402 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-02-24 03:28:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-02-24 03:28:13,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 407. [2022-02-24 03:28:13,234 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) [2022-02-24 03:28:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 408 transitions. [2022-02-24 03:28:13,234 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 408 transitions. Word has length 396 [2022-02-24 03:28:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:28:13,235 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 408 transitions. [2022-02-24 03:28:13,235 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) [2022-02-24 03:28:13,235 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 408 transitions. [2022-02-24 03:28:13,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-02-24 03:28:13,236 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:28:13,236 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] [2022-02-24 03:28:13,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-24 03:28:13,237 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:28:13,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:28:13,237 INFO L85 PathProgramCache]: Analyzing trace with hash 272743830, now seen corresponding path program 77 times [2022-02-24 03:28:13,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:28:13,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390371396] [2022-02-24 03:28:13,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:28:13,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:28:13,240 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:28:13,240 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:28:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:14,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:28:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:14,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 03:28:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:14,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:28:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:28:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:28:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:28:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:28:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:28:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:28:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:28:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:28:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:28:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:28:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:28:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:28:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:28:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:28:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:28:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:28:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:28:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:28:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:28:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:28:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:28:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:28:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:28:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:28:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:28:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:28:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:28:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:28:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:28:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:28:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:28:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:28:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 03:28:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 03:28:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 03:28:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 03:28:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 03:28:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:28:15,065 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:28:15,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390371396] [2022-02-24 03:28:15,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [390371396] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:28:15,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:28:15,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-02-24 03:28:15,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546376758] [2022-02-24 03:28:15,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:28:15,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-24 03:28:15,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:28:15,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-24 03:28:15,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1687, Invalid=5285, Unknown=0, NotChecked=0, Total=6972 [2022-02-24 03:28:15,067 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) [2022-02-24 03:28:17,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:28:17,870 INFO L93 Difference]: Finished difference Result 578 states and 619 transitions. [2022-02-24 03:28:17,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-02-24 03:28:17,871 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 [2022-02-24 03:28:17,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:28:17,872 INFO L225 Difference]: With dead ends: 578 [2022-02-24 03:28:17,872 INFO L226 Difference]: Without dead ends: 410 [2022-02-24 03:28:17,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6473 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=5215, Invalid=21845, Unknown=0, NotChecked=0, Total=27060 [2022-02-24 03:28:17,875 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 110 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:28:17,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 133 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 03:28:17,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-02-24 03:28:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 409. [2022-02-24 03:28:18,033 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) [2022-02-24 03:28:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 410 transitions. [2022-02-24 03:28:18,034 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 410 transitions. Word has length 404 [2022-02-24 03:28:18,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:28:18,034 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 410 transitions. [2022-02-24 03:28:18,034 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) [2022-02-24 03:28:18,034 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 410 transitions. [2022-02-24 03:28:18,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-02-24 03:28:18,035 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:28:18,036 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] [2022-02-24 03:28:18,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-24 03:28:18,036 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:28:18,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:28:18,036 INFO L85 PathProgramCache]: Analyzing trace with hash 446684148, now seen corresponding path program 78 times [2022-02-24 03:28:18,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:28:18,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892886156] [2022-02-24 03:28:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:28:18,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:28:18,040 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:28:18,041 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:28:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:28:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:28:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:28:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:28:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:28:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:28:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:28:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:28:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:28:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:28:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:28:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:28:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:28:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:28:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:28:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:28:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:28:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:28:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:28:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:28:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:28:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:28:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:28:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:28:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:28:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:28:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:28:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:28:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:28:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:28:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:28:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:28:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:28:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:28:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:28:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:28:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 03:28:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 03:28:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 03:28:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 03:28:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:28:20,983 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:28:20,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892886156] [2022-02-24 03:28:20,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [892886156] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:28:20,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:28:20,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [] total 88 [2022-02-24 03:28:20,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160156914] [2022-02-24 03:28:20,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:28:20,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-24 03:28:20,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:28:20,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-24 03:28:20,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=7480, Unknown=0, NotChecked=0, Total=7656 [2022-02-24 03:28:20,985 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) [2022-02-24 03:28:31,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:28:31,951 INFO L93 Difference]: Finished difference Result 422 states and 423 transitions. [2022-02-24 03:28:31,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-24 03:28:31,951 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 [2022-02-24 03:28:31,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:28:31,953 INFO L225 Difference]: With dead ends: 422 [2022-02-24 03:28:31,953 INFO L226 Difference]: Without dead ends: 420 [2022-02-24 03:28:31,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3869 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=611, Invalid=29491, Unknown=0, NotChecked=0, Total=30102 [2022-02-24 03:28:31,954 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 225 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 24561 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s 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, 7.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:28:31,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 472 Invalid, 24811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 24561 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-02-24 03:28:31,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-24 03:28:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 417. [2022-02-24 03:28:32,093 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) [2022-02-24 03:28:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 418 transitions. [2022-02-24 03:28:32,094 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 418 transitions. Word has length 406 [2022-02-24 03:28:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:28:32,094 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 418 transitions. [2022-02-24 03:28:32,094 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) [2022-02-24 03:28:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 418 transitions. [2022-02-24 03:28:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-02-24 03:28:32,096 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:28:32,096 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] [2022-02-24 03:28:32,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-24 03:28:32,096 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:28:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:28:32,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1547374030, now seen corresponding path program 79 times [2022-02-24 03:28:32,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:28:32,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753906020] [2022-02-24 03:28:32,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:28:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:28:32,100 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:28:32,100 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:28:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:28:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 03:28:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:28:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:28:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:28:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:28:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:28:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:28:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:28:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:28:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:28:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:28:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:28:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:28:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:28:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:28:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:28:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:28:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:28:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:28:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:28:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:28:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:28:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:28:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:28:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:28:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:28:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:28:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:28:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:28:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:28:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:28:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:28:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:28:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:28:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:28:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 03:28:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 03:28:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 03:28:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 03:28:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 03:28:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:28:33,986 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:28:33,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753906020] [2022-02-24 03:28:33,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [753906020] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:28:33,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:28:33,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [] total 86 [2022-02-24 03:28:33,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297851658] [2022-02-24 03:28:33,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:28:33,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-24 03:28:33,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:28:33,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-24 03:28:33,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=5540, Unknown=0, NotChecked=0, Total=7310 [2022-02-24 03:28:33,988 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) [2022-02-24 03:28:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:28:37,016 INFO L93 Difference]: Finished difference Result 592 states and 634 transitions. [2022-02-24 03:28:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-02-24 03:28:37,016 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 [2022-02-24 03:28:37,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:28:37,018 INFO L225 Difference]: With dead ends: 592 [2022-02-24 03:28:37,018 INFO L226 Difference]: Without dead ends: 420 [2022-02-24 03:28:37,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6799 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=5468, Invalid=22924, Unknown=0, NotChecked=0, Total=28392 [2022-02-24 03:28:37,019 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 112 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:28:37,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 150 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 03:28:37,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-24 03:28:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2022-02-24 03:28:37,160 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) [2022-02-24 03:28:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 420 transitions. [2022-02-24 03:28:37,161 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 420 transitions. Word has length 414 [2022-02-24 03:28:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:28:37,161 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 420 transitions. [2022-02-24 03:28:37,161 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) [2022-02-24 03:28:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 420 transitions. [2022-02-24 03:28:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-02-24 03:28:37,163 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:28:37,164 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] [2022-02-24 03:28:37,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-24 03:28:37,164 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:28:37,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:28:37,164 INFO L85 PathProgramCache]: Analyzing trace with hash 33902252, now seen corresponding path program 80 times [2022-02-24 03:28:37,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:28:37,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867615208] [2022-02-24 03:28:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:28:37,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:28:37,169 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:28:37,169 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:28:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:28:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:28:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:28:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:28:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:28:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:28:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:28:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:28:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:28:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:28:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:28:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:28:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:28:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:28:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:28:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:28:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:28:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:28:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:28:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:28:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:28:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:28:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:28:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:28:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:28:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:28:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:28:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:28:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:28:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:28:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:28:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:28:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:28:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:28:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:28:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:28:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:28:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 03:28:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 03:28:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 03:28:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 03:28:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:40,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:28:40,249 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:28:40,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867615208] [2022-02-24 03:28:40,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1867615208] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:28:40,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:28:40,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [] total 90 [2022-02-24 03:28:40,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711466397] [2022-02-24 03:28:40,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:28:40,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-24 03:28:40,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:28:40,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-24 03:28:40,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=7830, Unknown=0, NotChecked=0, Total=8010 [2022-02-24 03:28:40,251 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) [2022-02-24 03:28:51,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:28:51,751 INFO L93 Difference]: Finished difference Result 432 states and 433 transitions. [2022-02-24 03:28:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-24 03:28:51,751 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 [2022-02-24 03:28:51,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:28:51,752 INFO L225 Difference]: With dead ends: 432 [2022-02-24 03:28:51,752 INFO L226 Difference]: Without dead ends: 430 [2022-02-24 03:28:51,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4047 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=625, Invalid=30881, Unknown=0, NotChecked=0, Total=31506 [2022-02-24 03:28:51,754 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 230 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 26012 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s 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, 7.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:28:51,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 491 Invalid, 26268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 26012 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-02-24 03:28:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-24 03:28:51,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 427. [2022-02-24 03:28:51,902 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) [2022-02-24 03:28:51,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 428 transitions. [2022-02-24 03:28:51,902 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 428 transitions. Word has length 416 [2022-02-24 03:28:51,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:28:51,903 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 428 transitions. [2022-02-24 03:28:51,903 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) [2022-02-24 03:28:51,903 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 428 transitions. [2022-02-24 03:28:51,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-02-24 03:28:51,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:28:51,905 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] [2022-02-24 03:28:51,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-24 03:28:51,905 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:28:51,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:28:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash 423512198, now seen corresponding path program 81 times [2022-02-24 03:28:51,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:28:51,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721421010] [2022-02-24 03:28:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:28:51,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:28:51,910 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:28:51,910 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:28:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:28:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 03:28:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:28:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:28:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:28:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:28:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:28:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:28:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:28:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:28:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:28:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:28:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:28:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:28:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:28:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:28:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:28:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:28:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:28:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:28:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:28:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:28:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:28:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:28:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:28:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:28:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:28:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:28:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:28:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:28:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:28:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:28:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:28:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:28:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:28:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:28:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:28:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 03:28:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 03:28:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 03:28:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 03:28:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 03:28:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:28:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:28:53,913 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:28:53,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721421010] [2022-02-24 03:28:53,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1721421010] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:28:53,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:28:53,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [] total 88 [2022-02-24 03:28:53,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299044638] [2022-02-24 03:28:53,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:28:53,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-24 03:28:53,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:28:53,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-24 03:28:53,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1855, Invalid=5801, Unknown=0, NotChecked=0, Total=7656 [2022-02-24 03:28:53,916 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) [2022-02-24 03:28:57,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:28:57,051 INFO L93 Difference]: Finished difference Result 606 states and 649 transitions. [2022-02-24 03:28:57,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-24 03:28:57,051 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 [2022-02-24 03:28:57,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:28:57,053 INFO L225 Difference]: With dead ends: 606 [2022-02-24 03:28:57,053 INFO L226 Difference]: Without dead ends: 430 [2022-02-24 03:28:57,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7133 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=5727, Invalid=24029, Unknown=0, NotChecked=0, Total=29756 [2022-02-24 03:28:57,054 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 [2022-02-24 03:28:57,054 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] [2022-02-24 03:28:57,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-24 03:28:57,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 429. [2022-02-24 03:28:57,199 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) [2022-02-24 03:28:57,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 430 transitions. [2022-02-24 03:28:57,199 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 430 transitions. Word has length 424 [2022-02-24 03:28:57,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:28:57,200 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 430 transitions. [2022-02-24 03:28:57,200 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) [2022-02-24 03:28:57,200 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 430 transitions. [2022-02-24 03:28:57,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-24 03:28:57,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:28:57,201 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] [2022-02-24 03:28:57,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-24 03:28:57,202 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:28:57,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:28:57,202 INFO L85 PathProgramCache]: Analyzing trace with hash -712274972, now seen corresponding path program 82 times [2022-02-24 03:28:57,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:28:57,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080420108] [2022-02-24 03:28:57,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:28:57,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:28:57,206 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:28:57,206 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:28:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:29:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:29:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:29:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:29:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:29:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:29:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:29:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:29:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:29:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:29:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:29:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:29:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:29:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:29:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:29:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:29:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:29:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:29:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:29:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:29:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:29:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:29:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:29:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:29:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:29:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:29:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:29:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:29:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:29:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:29:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:29:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:29:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:29:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:29:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:29:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:29:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:29:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 03:29:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 03:29:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 03:29:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 03:29:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 03:29:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:29:00,408 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:29:00,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080420108] [2022-02-24 03:29:00,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2080420108] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:29:00,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:29:00,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [92] imperfect sequences [] total 92 [2022-02-24 03:29:00,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171600503] [2022-02-24 03:29:00,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:29:00,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-02-24 03:29:00,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:29:00,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-02-24 03:29:00,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=8188, Unknown=0, NotChecked=0, Total=8372 [2022-02-24 03:29:00,410 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) [2022-02-24 03:29:12,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:29:12,458 INFO L93 Difference]: Finished difference Result 442 states and 443 transitions. [2022-02-24 03:29:12,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-24 03:29:12,458 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 [2022-02-24 03:29:12,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:29:12,459 INFO L225 Difference]: With dead ends: 442 [2022-02-24 03:29:12,460 INFO L226 Difference]: Without dead ends: 440 [2022-02-24 03:29:12,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4229 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=639, Invalid=32303, Unknown=0, NotChecked=0, Total=32942 [2022-02-24 03:29:12,461 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 235 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 27098 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s 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, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:29:12,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 498 Invalid, 27360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 27098 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 03:29:12,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-02-24 03:29:12,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 437. [2022-02-24 03:29:12,600 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) [2022-02-24 03:29:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 438 transitions. [2022-02-24 03:29:12,601 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 438 transitions. Word has length 426 [2022-02-24 03:29:12,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:29:12,601 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 438 transitions. [2022-02-24 03:29:12,601 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) [2022-02-24 03:29:12,601 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 438 transitions. [2022-02-24 03:29:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2022-02-24 03:29:12,603 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:29:12,603 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] [2022-02-24 03:29:12,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-24 03:29:12,603 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:29:12,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:29:12,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1003500098, now seen corresponding path program 83 times [2022-02-24 03:29:12,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:29:12,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645315234] [2022-02-24 03:29:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:29:12,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:29:12,608 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:29:12,608 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:29:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:29:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 03:29:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:29:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:29:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:29:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:29:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:29:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:29:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:29:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:29:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:29:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:29:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:29:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:29:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:29:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:29:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:29:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:29:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:29:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:29:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:29:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:29:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:29:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:29:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:29:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:29:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:29:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:29:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:29:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:29:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:29:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:29:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:29:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:29:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:29:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:29:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:29:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 03:29:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 03:29:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 03:29:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 03:29:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 03:29:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 03:29:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:29:14,747 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:29:14,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645315234] [2022-02-24 03:29:14,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [645315234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:29:14,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:29:14,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [] total 90 [2022-02-24 03:29:14,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880638526] [2022-02-24 03:29:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:29:14,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-24 03:29:14,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:29:14,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-24 03:29:14,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1942, Invalid=6068, Unknown=0, NotChecked=0, Total=8010 [2022-02-24 03:29:14,749 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) [2022-02-24 03:29:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:29:18,087 INFO L93 Difference]: Finished difference Result 620 states and 664 transitions. [2022-02-24 03:29:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-24 03:29:18,088 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 [2022-02-24 03:29:18,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:29:18,089 INFO L225 Difference]: With dead ends: 620 [2022-02-24 03:29:18,090 INFO L226 Difference]: Without dead ends: 440 [2022-02-24 03:29:18,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7475 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5992, Invalid=25160, Unknown=0, NotChecked=0, Total=31152 [2022-02-24 03:29:18,092 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 116 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:29:18,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 139 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 03:29:18,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-02-24 03:29:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2022-02-24 03:29:18,252 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) [2022-02-24 03:29:18,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 440 transitions. [2022-02-24 03:29:18,252 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 440 transitions. Word has length 434 [2022-02-24 03:29:18,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:29:18,253 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 440 transitions. [2022-02-24 03:29:18,253 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) [2022-02-24 03:29:18,253 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 440 transitions. [2022-02-24 03:29:18,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-02-24 03:29:18,255 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:29:18,255 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] [2022-02-24 03:29:18,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-24 03:29:18,255 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:29:18,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:29:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash -889261156, now seen corresponding path program 84 times [2022-02-24 03:29:18,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:29:18,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990418465] [2022-02-24 03:29:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:29:18,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:29:18,261 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:29:18,261 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:29:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:29:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:29:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:29:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:29:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:29:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:29:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:29:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:29:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:29:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:29:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:29:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:29:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:29:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:29:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:29:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:29:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:29:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:29:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:29:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:29:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:29:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:29:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:29:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:29:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:29:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:29:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:29:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:29:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:29:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:29:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:29:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:29:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:29:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:29:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 03:29:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 03:29:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 03:29:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 03:29:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 03:29:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 03:29:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 03:29:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 03:29:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 03:29:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:29:21,660 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:29:21,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990418465] [2022-02-24 03:29:21,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1990418465] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:29:21,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:29:21,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [94] imperfect sequences [] total 94 [2022-02-24 03:29:21,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430705604] [2022-02-24 03:29:21,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:29:21,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-02-24 03:29:21,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:29:21,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-02-24 03:29:21,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=8554, Unknown=0, NotChecked=0, Total=8742 [2022-02-24 03:29:21,662 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) [2022-02-24 03:29:34,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:29:34,217 INFO L93 Difference]: Finished difference Result 452 states and 453 transitions. [2022-02-24 03:29:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-24 03:29:34,218 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 [2022-02-24 03:29:34,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:29:34,219 INFO L225 Difference]: With dead ends: 452 [2022-02-24 03:29:34,219 INFO L226 Difference]: Without dead ends: 450 [2022-02-24 03:29:34,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4415 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=653, Invalid=33757, Unknown=0, NotChecked=0, Total=34410 [2022-02-24 03:29:34,221 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 240 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 28344 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s 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, 8.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:29:34,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 509 Invalid, 28612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 28344 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-02-24 03:29:34,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-24 03:29:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 447. [2022-02-24 03:29:34,381 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) [2022-02-24 03:29:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 448 transitions. [2022-02-24 03:29:34,381 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 448 transitions. Word has length 436 [2022-02-24 03:29:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:29:34,382 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 448 transitions. [2022-02-24 03:29:34,382 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) [2022-02-24 03:29:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 448 transitions. [2022-02-24 03:29:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2022-02-24 03:29:34,384 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:29:34,384 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] [2022-02-24 03:29:34,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-24 03:29:34,384 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:29:34,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:29:34,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1334051466, now seen corresponding path program 85 times [2022-02-24 03:29:34,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:29:34,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799225985] [2022-02-24 03:29:34,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:29:34,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:29:34,389 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:29:34,389 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:29:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:29:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 03:29:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:29:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:29:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:29:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:29:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:29:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:29:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:29:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:29:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:29:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:29:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:29:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:29:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:29:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:29:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:29:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:29:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:29:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:29:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:29:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:29:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:29:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:29:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:29:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:29:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:29:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:29:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:29:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:29:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:29:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:29:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:29:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:29:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 03:29:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 03:29:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 03:29:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 03:29:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 03:29:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 03:29:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 03:29:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 03:29:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 03:29:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 03:29:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:29:36,550 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:29:36,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799225985] [2022-02-24 03:29:36,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [799225985] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:29:36,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:29:36,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [92] imperfect sequences [] total 92 [2022-02-24 03:29:36,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078556003] [2022-02-24 03:29:36,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:29:36,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-02-24 03:29:36,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:29:36,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-02-24 03:29:36,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2031, Invalid=6341, Unknown=0, NotChecked=0, Total=8372 [2022-02-24 03:29:36,552 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) [2022-02-24 03:29:39,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:29:39,903 INFO L93 Difference]: Finished difference Result 634 states and 679 transitions. [2022-02-24 03:29:39,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-02-24 03:29:39,904 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 [2022-02-24 03:29:39,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:29:39,905 INFO L225 Difference]: With dead ends: 634 [2022-02-24 03:29:39,905 INFO L226 Difference]: Without dead ends: 450 [2022-02-24 03:29:39,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7825 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=6263, Invalid=26317, Unknown=0, NotChecked=0, Total=32580 [2022-02-24 03:29:39,907 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 118 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:29:39,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 146 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2185 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 03:29:39,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-24 03:29:40,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 449. [2022-02-24 03:29:40,069 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) [2022-02-24 03:29:40,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 450 transitions. [2022-02-24 03:29:40,069 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 450 transitions. Word has length 444 [2022-02-24 03:29:40,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:29:40,069 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 450 transitions. [2022-02-24 03:29:40,070 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) [2022-02-24 03:29:40,070 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 450 transitions. [2022-02-24 03:29:40,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-02-24 03:29:40,071 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:29:40,071 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] [2022-02-24 03:29:40,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-24 03:29:40,072 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:29:40,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:29:40,072 INFO L85 PathProgramCache]: Analyzing trace with hash -323754540, now seen corresponding path program 86 times [2022-02-24 03:29:40,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:29:40,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046118549] [2022-02-24 03:29:40,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:29:40,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:29:40,076 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:29:40,076 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:29:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:29:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:29:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:29:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:29:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:29:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:29:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:29:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:29:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:29:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:29:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:29:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:29:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:29:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:29:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:29:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:29:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:29:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:29:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:29:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:29:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:29:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:29:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:29:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:29:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:29:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:29:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:29:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:29:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:29:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:29:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:29:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:29:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:29:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:29:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:29:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 03:29:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 03:29:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 03:29:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 03:29:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 03:29:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 03:29:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 03:29:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 03:29:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 03:29:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:29:43,546 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:29:43,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046118549] [2022-02-24 03:29:43,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1046118549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:29:43,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:29:43,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2022-02-24 03:29:43,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875632642] [2022-02-24 03:29:43,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:29:43,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-24 03:29:43,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:29:43,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-24 03:29:43,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=8928, Unknown=0, NotChecked=0, Total=9120 [2022-02-24 03:29:43,548 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) [2022-02-24 03:29:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:29:56,523 INFO L93 Difference]: Finished difference Result 462 states and 463 transitions. [2022-02-24 03:29:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-24 03:29:56,524 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 [2022-02-24 03:29:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:29:56,525 INFO L225 Difference]: With dead ends: 462 [2022-02-24 03:29:56,525 INFO L226 Difference]: Without dead ends: 460 [2022-02-24 03:29:56,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4605 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=667, Invalid=35243, Unknown=0, NotChecked=0, Total=35910 [2022-02-24 03:29:56,527 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 245 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 29296 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s 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, 8.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:29:56,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 516 Invalid, 29570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 29296 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-02-24 03:29:56,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-02-24 03:29:56,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 457. [2022-02-24 03:29:56,690 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) [2022-02-24 03:29:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 458 transitions. [2022-02-24 03:29:56,691 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 458 transitions. Word has length 446 [2022-02-24 03:29:56,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:29:56,691 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 458 transitions. [2022-02-24 03:29:56,692 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) [2022-02-24 03:29:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 458 transitions. [2022-02-24 03:29:56,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2022-02-24 03:29:56,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:29:56,694 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] [2022-02-24 03:29:56,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-24 03:29:56,694 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:29:56,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:29:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash -32032850, now seen corresponding path program 87 times [2022-02-24 03:29:56,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:29:56,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071361922] [2022-02-24 03:29:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:29:56,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:29:56,698 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:29:56,698 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:29:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:29:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 03:29:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:29:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:29:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:29:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:29:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:29:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:29:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:29:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:29:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:29:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:29:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:29:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:29:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:29:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:29:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:29:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:29:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:29:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:29:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:29:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:29:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:29:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:29:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:29:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:29:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:29:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:29:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:29:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:29:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:29:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:29:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:29:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:29:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:29:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 03:29:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 03:29:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 03:29:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 03:29:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 03:29:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 03:29:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 03:29:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 03:29:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 03:29:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 03:29:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:29:58,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:29:58,902 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:29:58,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071361922] [2022-02-24 03:29:58,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2071361922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:29:58,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:29:58,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [94] imperfect sequences [] total 94 [2022-02-24 03:29:58,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844137086] [2022-02-24 03:29:58,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:29:58,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-02-24 03:29:58,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:29:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-02-24 03:29:58,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2122, Invalid=6620, Unknown=0, NotChecked=0, Total=8742 [2022-02-24 03:29:58,904 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) [2022-02-24 03:30:02,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:30:02,441 INFO L93 Difference]: Finished difference Result 648 states and 694 transitions. [2022-02-24 03:30:02,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-24 03:30:02,442 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 [2022-02-24 03:30:02,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:30:02,443 INFO L225 Difference]: With dead ends: 648 [2022-02-24 03:30:02,443 INFO L226 Difference]: Without dead ends: 460 [2022-02-24 03:30:02,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8183 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=6540, Invalid=27500, Unknown=0, NotChecked=0, Total=34040 [2022-02-24 03:30:02,445 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 120 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:30:02,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 168 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 03:30:02,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-02-24 03:30:02,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2022-02-24 03:30:02,612 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) [2022-02-24 03:30:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 460 transitions. [2022-02-24 03:30:02,612 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 460 transitions. Word has length 454 [2022-02-24 03:30:02,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:30:02,613 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 460 transitions. [2022-02-24 03:30:02,613 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) [2022-02-24 03:30:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 460 transitions. [2022-02-24 03:30:02,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-02-24 03:30:02,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:30:02,615 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] [2022-02-24 03:30:02,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-24 03:30:02,615 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:30:02,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:30:02,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1886993780, now seen corresponding path program 88 times [2022-02-24 03:30:02,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:30:02,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081210054] [2022-02-24 03:30:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:30:02,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:30:02,619 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:30:02,619 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:30:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:30:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:30:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:30:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:30:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:30:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:30:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:30:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:30:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:30:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:30:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:30:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:30:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:30:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:30:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:30:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:30:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:30:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:30:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:30:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:30:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:30:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:30:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:30:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:30:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:30:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:30:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:30:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:30:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:30:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:30:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:30:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:30:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:30:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:30:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:30:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:30:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 03:30:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 03:30:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 03:30:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 03:30:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 03:30:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 03:30:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 03:30:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 03:30:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 03:30:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:30:06,182 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:30:06,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081210054] [2022-02-24 03:30:06,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2081210054] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:30:06,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:30:06,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2022-02-24 03:30:06,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056007308] [2022-02-24 03:30:06,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:30:06,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-24 03:30:06,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:30:06,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-24 03:30:06,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=9310, Unknown=0, NotChecked=0, Total=9506 [2022-02-24 03:30:06,183 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) [2022-02-24 03:30:19,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:30:19,828 INFO L93 Difference]: Finished difference Result 472 states and 473 transitions. [2022-02-24 03:30:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-02-24 03:30:19,829 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 [2022-02-24 03:30:19,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:30:19,835 INFO L225 Difference]: With dead ends: 472 [2022-02-24 03:30:19,835 INFO L226 Difference]: Without dead ends: 470 [2022-02-24 03:30:19,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4799 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=681, Invalid=36761, Unknown=0, NotChecked=0, Total=37442 [2022-02-24 03:30:19,837 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 250 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 30920 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s 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, 9.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:30:19,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 531 Invalid, 31200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 30920 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-02-24 03:30:19,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-02-24 03:30:20,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 467. [2022-02-24 03:30:20,016 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) [2022-02-24 03:30:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 468 transitions. [2022-02-24 03:30:20,017 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 468 transitions. Word has length 456 [2022-02-24 03:30:20,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:30:20,017 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 468 transitions. [2022-02-24 03:30:20,017 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) [2022-02-24 03:30:20,017 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 468 transitions. [2022-02-24 03:30:20,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-02-24 03:30:20,019 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:30:20,019 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] [2022-02-24 03:30:20,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-24 03:30:20,019 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:30:20,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:30:20,020 INFO L85 PathProgramCache]: Analyzing trace with hash 259906662, now seen corresponding path program 89 times [2022-02-24 03:30:20,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:30:20,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299593495] [2022-02-24 03:30:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:30:20,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:30:20,023 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:30:20,023 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:30:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:30:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 03:30:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:30:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:30:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:30:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:30:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:30:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:30:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:30:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:30:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:30:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:30:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:30:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:30:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:30:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:30:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:30:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:30:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:30:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:30:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:30:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:30:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:30:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:30:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:30:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:30:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:30:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:30:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:30:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:30:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:30:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:30:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:30:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:30:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:30:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:30:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 03:30:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 03:30:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 03:30:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 03:30:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 03:30:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 03:30:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 03:30:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 03:30:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 03:30:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 03:30:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:30:22,350 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:30:22,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299593495] [2022-02-24 03:30:22,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [299593495] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:30:22,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:30:22,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2022-02-24 03:30:22,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168948933] [2022-02-24 03:30:22,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:30:22,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-24 03:30:22,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:30:22,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-24 03:30:22,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2215, Invalid=6905, Unknown=0, NotChecked=0, Total=9120 [2022-02-24 03:30:22,352 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) [2022-02-24 03:30:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:30:25,784 INFO L93 Difference]: Finished difference Result 662 states and 709 transitions. [2022-02-24 03:30:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-24 03:30:25,784 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 [2022-02-24 03:30:25,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:30:25,786 INFO L225 Difference]: With dead ends: 662 [2022-02-24 03:30:25,786 INFO L226 Difference]: Without dead ends: 470 [2022-02-24 03:30:25,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8549 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=6823, Invalid=28709, Unknown=0, NotChecked=0, Total=35532 [2022-02-24 03:30:25,788 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 [2022-02-24 03:30:25,789 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] [2022-02-24 03:30:25,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-02-24 03:30:25,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2022-02-24 03:30:25,962 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) [2022-02-24 03:30:25,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 470 transitions. [2022-02-24 03:30:25,963 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 470 transitions. Word has length 464 [2022-02-24 03:30:25,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:30:25,963 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 470 transitions. [2022-02-24 03:30:25,963 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) [2022-02-24 03:30:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 470 transitions. [2022-02-24 03:30:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-02-24 03:30:25,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:30:25,965 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] [2022-02-24 03:30:25,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-24 03:30:25,965 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:30:25,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:30:25,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1222371780, now seen corresponding path program 90 times [2022-02-24 03:30:25,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:30:25,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756857675] [2022-02-24 03:30:25,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:30:25,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:30:25,969 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:30:25,969 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:30:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:30:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:30:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:30:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:30:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:30:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:30:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:30:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:30:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:30:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:30:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:30:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:30:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:30:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:30:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:30:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:30:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:30:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:30:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:30:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:30:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:30:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:30:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:30:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:30:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:30:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:30:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:30:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:30:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:30:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:30:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:30:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:30:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:30:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:30:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:30:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:30:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 03:30:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 03:30:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 03:30:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 03:30:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 03:30:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 03:30:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 03:30:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 03:30:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 03:30:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 03:30:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:30:29,755 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:30:29,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756857675] [2022-02-24 03:30:29,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1756857675] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:30:29,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:30:29,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [100] imperfect sequences [] total 100 [2022-02-24 03:30:29,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738221609] [2022-02-24 03:30:29,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:30:29,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-24 03:30:29,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:30:29,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-24 03:30:29,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=9700, Unknown=0, NotChecked=0, Total=9900 [2022-02-24 03:30:29,756 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) [2022-02-24 03:30:43,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:30:43,851 INFO L93 Difference]: Finished difference Result 482 states and 483 transitions. [2022-02-24 03:30:43,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-24 03:30:43,851 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 [2022-02-24 03:30:43,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:30:43,853 INFO L225 Difference]: With dead ends: 482 [2022-02-24 03:30:43,853 INFO L226 Difference]: Without dead ends: 480 [2022-02-24 03:30:43,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4997 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=695, Invalid=38311, Unknown=0, NotChecked=0, Total=39006 [2022-02-24 03:30:43,856 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 255 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 31914 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 32200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 31914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:30:43,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 538 Invalid, 32200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [286 Valid, 31914 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-02-24 03:30:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-02-24 03:30:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 477. [2022-02-24 03:30:44,051 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) [2022-02-24 03:30:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 478 transitions. [2022-02-24 03:30:44,052 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 478 transitions. Word has length 466 [2022-02-24 03:30:44,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:30:44,052 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 478 transitions. [2022-02-24 03:30:44,052 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) [2022-02-24 03:30:44,052 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 478 transitions. [2022-02-24 03:30:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-02-24 03:30:44,054 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:30:44,054 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] [2022-02-24 03:30:44,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-24 03:30:44,054 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:30:44,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:30:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2142522270, now seen corresponding path program 91 times [2022-02-24 03:30:44,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:30:44,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758029880] [2022-02-24 03:30:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:30:44,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:30:44,058 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:30:44,058 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:30:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:30:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 03:30:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:30:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:30:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:30:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:30:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:30:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:30:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:30:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:30:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:30:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:30:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:30:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:30:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:30:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:30:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:30:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:30:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:30:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:30:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:30:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:30:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:30:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:30:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:30:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:30:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:30:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:30:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:30:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:30:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:30:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:30:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:30:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:30:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:30:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:30:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 03:30:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 03:30:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 03:30:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 03:30:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 03:30:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 03:30:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 03:30:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 03:30:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 03:30:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 03:30:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 03:30:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:30:46,455 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:30:46,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758029880] [2022-02-24 03:30:46,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1758029880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:30:46,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:30:46,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2022-02-24 03:30:46,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869957262] [2022-02-24 03:30:46,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:30:46,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-24 03:30:46,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:30:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-24 03:30:46,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=7196, Unknown=0, NotChecked=0, Total=9506 [2022-02-24 03:30:46,457 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) [2022-02-24 03:30:50,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:30:50,147 INFO L93 Difference]: Finished difference Result 676 states and 724 transitions. [2022-02-24 03:30:50,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-24 03:30:50,147 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 [2022-02-24 03:30:50,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:30:50,149 INFO L225 Difference]: With dead ends: 676 [2022-02-24 03:30:50,149 INFO L226 Difference]: Without dead ends: 480 [2022-02-24 03:30:50,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8923 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=7112, Invalid=29944, Unknown=0, NotChecked=0, Total=37056 [2022-02-24 03:30:50,151 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 124 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:30:50,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 162 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 03:30:50,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-02-24 03:30:50,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2022-02-24 03:30:50,327 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) [2022-02-24 03:30:50,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 480 transitions. [2022-02-24 03:30:50,328 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 480 transitions. Word has length 474 [2022-02-24 03:30:50,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:30:50,328 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 480 transitions. [2022-02-24 03:30:50,328 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) [2022-02-24 03:30:50,328 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 480 transitions. [2022-02-24 03:30:50,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-02-24 03:30:50,330 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:30:50,330 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] [2022-02-24 03:30:50,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-24 03:30:50,331 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:30:50,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:30:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1688189820, now seen corresponding path program 92 times [2022-02-24 03:30:50,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:30:50,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148032881] [2022-02-24 03:30:50,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:30:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:30:50,335 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:30:50,335 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:30:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:30:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:30:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:30:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:30:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:30:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:30:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:30:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:30:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:30:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:30:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:30:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:30:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:30:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:30:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:30:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:30:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:30:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:30:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:30:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:30:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:30:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:30:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:30:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:30:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:30:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:30:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:30:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:30:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:30:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:30:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:30:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:30:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:30:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 03:30:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 03:30:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 03:30:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 03:30:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 03:30:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 03:30:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 03:30:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 03:30:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 03:30:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 03:30:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 03:30:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 03:30:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 03:30:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 03:30:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:30:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:30:54,234 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:30:54,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148032881] [2022-02-24 03:30:54,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1148032881] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:30:54,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:30:54,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-02-24 03:30:54,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418109900] [2022-02-24 03:30:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:30:54,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-24 03:30:54,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:30:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-24 03:30:54,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=10098, Unknown=0, NotChecked=0, Total=10302 [2022-02-24 03:30:54,236 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) [2022-02-24 03:31:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:31:08,864 INFO L93 Difference]: Finished difference Result 492 states and 493 transitions. [2022-02-24 03:31:08,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-24 03:31:08,865 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 [2022-02-24 03:31:08,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:31:08,866 INFO L225 Difference]: With dead ends: 492 [2022-02-24 03:31:08,866 INFO L226 Difference]: Without dead ends: 490 [2022-02-24 03:31:08,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5199 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=709, Invalid=39893, Unknown=0, NotChecked=0, Total=40602 [2022-02-24 03:31:08,868 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 260 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 33265 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 33557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 33265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:31:08,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 549 Invalid, 33557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [292 Valid, 33265 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-02-24 03:31:08,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-02-24 03:31:09,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 487. [2022-02-24 03:31:09,064 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) [2022-02-24 03:31:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 488 transitions. [2022-02-24 03:31:09,065 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 488 transitions. Word has length 476 [2022-02-24 03:31:09,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:31:09,065 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 488 transitions. [2022-02-24 03:31:09,065 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) [2022-02-24 03:31:09,065 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 488 transitions. [2022-02-24 03:31:09,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-24 03:31:09,067 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:31:09,067 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] [2022-02-24 03:31:09,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-24 03:31:09,067 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:31:09,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:31:09,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1740184234, now seen corresponding path program 93 times [2022-02-24 03:31:09,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:31:09,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909078885] [2022-02-24 03:31:09,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:31:09,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:31:09,072 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:31:09,072 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:31:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:31:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 03:31:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:31:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:31:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:31:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:31:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:31:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:31:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:31:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:31:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:31:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:31:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:31:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:31:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:31:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:31:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:31:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:31:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:31:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:31:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:31:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:31:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:31:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:31:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:31:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:31:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:31:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:31:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:31:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:31:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:31:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:31:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:31:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 03:31:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 03:31:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 03:31:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 03:31:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 03:31:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 03:31:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 03:31:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 03:31:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 03:31:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 03:31:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 03:31:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 03:31:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 03:31:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 03:31:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 03:31:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:31:11,554 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:31:11,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909078885] [2022-02-24 03:31:11,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [909078885] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:31:11,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:31:11,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [100] imperfect sequences [] total 100 [2022-02-24 03:31:11,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141951394] [2022-02-24 03:31:11,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:31:11,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-24 03:31:11,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:31:11,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-24 03:31:11,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2407, Invalid=7493, Unknown=0, NotChecked=0, Total=9900 [2022-02-24 03:31:11,556 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) [2022-02-24 03:31:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:31:15,441 INFO L93 Difference]: Finished difference Result 690 states and 739 transitions. [2022-02-24 03:31:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-02-24 03:31:15,441 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 [2022-02-24 03:31:15,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:31:15,443 INFO L225 Difference]: With dead ends: 690 [2022-02-24 03:31:15,443 INFO L226 Difference]: Without dead ends: 490 [2022-02-24 03:31:15,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9305 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=7407, Invalid=31205, Unknown=0, NotChecked=0, Total=38612 [2022-02-24 03:31:15,445 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 [2022-02-24 03:31:15,445 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] [2022-02-24 03:31:15,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-02-24 03:31:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 489. [2022-02-24 03:31:15,634 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) [2022-02-24 03:31:15,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 490 transitions. [2022-02-24 03:31:15,635 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 490 transitions. Word has length 484 [2022-02-24 03:31:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:31:15,635 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 490 transitions. [2022-02-24 03:31:15,635 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) [2022-02-24 03:31:15,635 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 490 transitions. [2022-02-24 03:31:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-02-24 03:31:15,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:31:15,638 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] [2022-02-24 03:31:15,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-24 03:31:15,638 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:31:15,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:31:15,638 INFO L85 PathProgramCache]: Analyzing trace with hash -616130636, now seen corresponding path program 94 times [2022-02-24 03:31:15,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:31:15,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272903707] [2022-02-24 03:31:15,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:31:15,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:31:15,642 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:31:15,642 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:31:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:31:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:31:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:31:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:31:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:31:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:31:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:31:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:31:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:31:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:31:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:31:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:31:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:31:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:31:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:31:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:31:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:31:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:31:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:31:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:31:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:31:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:31:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:31:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:31:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:31:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:31:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:31:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:31:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:31:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:31:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:31:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:31:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:31:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:31:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 03:31:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 03:31:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 03:31:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 03:31:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 03:31:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 03:31:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 03:31:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 03:31:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 03:31:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 03:31:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 03:31:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 03:31:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 03:31:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 03:31:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:19,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:31:19,701 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:31:19,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272903707] [2022-02-24 03:31:19,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [272903707] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:31:19,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:31:19,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [] total 104 [2022-02-24 03:31:19,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367780345] [2022-02-24 03:31:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:31:19,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-02-24 03:31:19,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:31:19,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-02-24 03:31:19,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=10504, Unknown=0, NotChecked=0, Total=10712 [2022-02-24 03:31:19,703 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) [2022-02-24 03:31:35,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:31:35,122 INFO L93 Difference]: Finished difference Result 502 states and 503 transitions. [2022-02-24 03:31:35,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-24 03:31:35,123 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 [2022-02-24 03:31:35,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:31:35,124 INFO L225 Difference]: With dead ends: 502 [2022-02-24 03:31:35,124 INFO L226 Difference]: Without dead ends: 500 [2022-02-24 03:31:35,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5405 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=723, Invalid=41507, Unknown=0, NotChecked=0, Total=42230 [2022-02-24 03:31:35,126 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 265 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 34994 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 35292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 34994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:31:35,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 564 Invalid, 35292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [298 Valid, 34994 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-02-24 03:31:35,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-02-24 03:31:35,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 497. [2022-02-24 03:31:35,333 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) [2022-02-24 03:31:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 498 transitions. [2022-02-24 03:31:35,333 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 498 transitions. Word has length 486 [2022-02-24 03:31:35,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:31:35,334 INFO L470 AbstractCegarLoop]: Abstraction has 497 states and 498 transitions. [2022-02-24 03:31:35,334 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) [2022-02-24 03:31:35,334 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 498 transitions. [2022-02-24 03:31:35,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-02-24 03:31:35,336 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:31:35,336 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] [2022-02-24 03:31:35,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-24 03:31:35,337 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:31:35,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:31:35,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1196034446, now seen corresponding path program 95 times [2022-02-24 03:31:35,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:31:35,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874573694] [2022-02-24 03:31:35,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:31:35,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:31:35,341 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:31:35,341 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:31:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:31:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 03:31:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:31:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:31:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:31:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:31:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:31:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:31:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:31:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:31:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:31:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:31:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:31:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:31:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:31:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:31:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:31:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:31:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:31:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:31:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:31:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:31:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:31:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:31:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:31:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:31:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:31:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:31:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:31:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:31:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:31:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:31:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:31:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:31:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 03:31:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 03:31:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 03:31:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 03:31:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 03:31:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 03:31:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 03:31:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 03:31:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 03:31:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 03:31:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 03:31:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 03:31:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 03:31:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 03:31:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 03:31:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:31:37,920 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:31:37,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874573694] [2022-02-24 03:31:37,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1874573694] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:31:37,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:31:37,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-02-24 03:31:37,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856801335] [2022-02-24 03:31:37,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:31:37,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-24 03:31:37,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:31:37,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-24 03:31:37,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2506, Invalid=7796, Unknown=0, NotChecked=0, Total=10302 [2022-02-24 03:31:37,923 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) [2022-02-24 03:31:42,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:31:42,058 INFO L93 Difference]: Finished difference Result 704 states and 754 transitions. [2022-02-24 03:31:42,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-24 03:31:42,058 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 [2022-02-24 03:31:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:31:42,060 INFO L225 Difference]: With dead ends: 704 [2022-02-24 03:31:42,060 INFO L226 Difference]: Without dead ends: 500 [2022-02-24 03:31:42,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9695 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=7708, Invalid=32492, Unknown=0, NotChecked=0, Total=40200 [2022-02-24 03:31:42,063 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 128 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:31:42,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 166 Invalid, 3003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 03:31:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-02-24 03:31:42,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 499. [2022-02-24 03:31:42,270 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) [2022-02-24 03:31:42,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 500 transitions. [2022-02-24 03:31:42,270 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 500 transitions. Word has length 494 [2022-02-24 03:31:42,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:31:42,271 INFO L470 AbstractCegarLoop]: Abstraction has 499 states and 500 transitions. [2022-02-24 03:31:42,271 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) [2022-02-24 03:31:42,271 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 500 transitions. [2022-02-24 03:31:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-02-24 03:31:42,273 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:31:42,273 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] [2022-02-24 03:31:42,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-24 03:31:42,273 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:31:42,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:31:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash -942875028, now seen corresponding path program 96 times [2022-02-24 03:31:42,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:31:42,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964860867] [2022-02-24 03:31:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:31:42,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:31:42,278 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:31:42,278 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:31:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:31:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:31:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:31:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:31:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:31:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:31:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:31:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:31:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:31:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:31:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:31:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:31:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:31:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:31:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:31:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:31:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:31:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:31:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:31:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:31:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:31:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:31:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:31:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:31:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:31:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:31:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:31:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:31:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:31:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:31:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:31:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:31:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:31:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:31:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:31:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 03:31:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 03:31:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 03:31:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 03:31:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 03:31:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 03:31:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 03:31:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 03:31:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 03:31:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 03:31:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 03:31:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 03:31:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 03:31:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 03:31:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:31:46,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:31:46,553 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:31:46,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964860867] [2022-02-24 03:31:46,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1964860867] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:31:46,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:31:46,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [106] imperfect sequences [] total 106 [2022-02-24 03:31:46,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773880207] [2022-02-24 03:31:46,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:31:46,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-02-24 03:31:46,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:31:46,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-02-24 03:31:46,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=10918, Unknown=0, NotChecked=0, Total=11130 [2022-02-24 03:31:46,554 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) [2022-02-24 03:32:02,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:32:02,592 INFO L93 Difference]: Finished difference Result 512 states and 513 transitions. [2022-02-24 03:32:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-24 03:32:02,593 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 [2022-02-24 03:32:02,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:32:02,594 INFO L225 Difference]: With dead ends: 512 [2022-02-24 03:32:02,594 INFO L226 Difference]: Without dead ends: 510 [2022-02-24 03:32:02,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5615 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=737, Invalid=43153, Unknown=0, NotChecked=0, Total=43890 [2022-02-24 03:32:02,596 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 270 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 36564 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s 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, 11.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:32:02,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 579 Invalid, 36868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [304 Valid, 36564 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-02-24 03:32:02,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-02-24 03:32:02,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 507. [2022-02-24 03:32:02,798 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) [2022-02-24 03:32:02,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 508 transitions. [2022-02-24 03:32:02,799 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 508 transitions. Word has length 496 [2022-02-24 03:32:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:32:02,799 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 508 transitions. [2022-02-24 03:32:02,800 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) [2022-02-24 03:32:02,800 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 508 transitions. [2022-02-24 03:32:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-02-24 03:32:02,802 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:32:02,802 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] [2022-02-24 03:32:02,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-24 03:32:02,803 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:32:02,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:32:02,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1789257658, now seen corresponding path program 97 times [2022-02-24 03:32:02,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:32:02,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529293484] [2022-02-24 03:32:02,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:32:02,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:32:02,808 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:32:02,808 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:32:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:32:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 03:32:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:32:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:32:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:32:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:32:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:32:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:32:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:32:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:32:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:32:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:32:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:32:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:32:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:32:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:32:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:32:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:32:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:32:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:32:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:32:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:32:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:32:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:32:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:32:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:32:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:32:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:32:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:32:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:32:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:32:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:32:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:32:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:32:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:32:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 03:32:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 03:32:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 03:32:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 03:32:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 03:32:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 03:32:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 03:32:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 03:32:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 03:32:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 03:32:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 03:32:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 03:32:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 03:32:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 03:32:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 03:32:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:05,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:32:05,508 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:32:05,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529293484] [2022-02-24 03:32:05,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1529293484] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:32:05,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:32:05,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [] total 104 [2022-02-24 03:32:05,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994587721] [2022-02-24 03:32:05,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:32:05,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-02-24 03:32:05,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:32:05,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-02-24 03:32:05,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2607, Invalid=8105, Unknown=0, NotChecked=0, Total=10712 [2022-02-24 03:32:05,510 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) [2022-02-24 03:32:09,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:32:09,751 INFO L93 Difference]: Finished difference Result 718 states and 769 transitions. [2022-02-24 03:32:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-24 03:32:09,751 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 [2022-02-24 03:32:09,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:32:09,753 INFO L225 Difference]: With dead ends: 718 [2022-02-24 03:32:09,753 INFO L226 Difference]: Without dead ends: 510 [2022-02-24 03:32:09,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10093 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=8015, Invalid=33805, Unknown=0, NotChecked=0, Total=41820 [2022-02-24 03:32:09,755 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 130 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:32:09,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 173 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 03:32:09,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-02-24 03:32:09,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 509. [2022-02-24 03:32:09,978 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) [2022-02-24 03:32:09,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 510 transitions. [2022-02-24 03:32:09,979 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 510 transitions. Word has length 504 [2022-02-24 03:32:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:32:09,979 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 510 transitions. [2022-02-24 03:32:09,979 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) [2022-02-24 03:32:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 510 transitions. [2022-02-24 03:32:09,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-02-24 03:32:09,982 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:32:09,982 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] [2022-02-24 03:32:09,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-24 03:32:09,982 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:32:09,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:32:09,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1572269988, now seen corresponding path program 98 times [2022-02-24 03:32:09,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:32:09,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416792978] [2022-02-24 03:32:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:32:09,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:32:09,987 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:32:09,987 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:32:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:32:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:32:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:32:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:32:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:32:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:32:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:32:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:32:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:32:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:32:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:32:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:32:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:32:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:32:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:32:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:32:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:32:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:32:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:32:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:32:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:32:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:32:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:32:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:32:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:32:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:32:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:32:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:32:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:32:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:32:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:32:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:32:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:32:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:32:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:32:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 03:32:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 03:32:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 03:32:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 03:32:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 03:32:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 03:32:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 03:32:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 03:32:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 03:32:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 03:32:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 03:32:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 03:32:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 03:32:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 03:32:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 03:32:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:32:14,395 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:32:14,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416792978] [2022-02-24 03:32:14,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1416792978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:32:14,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:32:14,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [108] imperfect sequences [] total 108 [2022-02-24 03:32:14,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143390203] [2022-02-24 03:32:14,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:32:14,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-02-24 03:32:14,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:32:14,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-02-24 03:32:14,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=11340, Unknown=0, NotChecked=0, Total=11556 [2022-02-24 03:32:14,397 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) [2022-02-24 03:32:31,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:32:31,085 INFO L93 Difference]: Finished difference Result 522 states and 523 transitions. [2022-02-24 03:32:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-24 03:32:31,085 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 [2022-02-24 03:32:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:32:31,087 INFO L225 Difference]: With dead ends: 522 [2022-02-24 03:32:31,087 INFO L226 Difference]: Without dead ends: 520 [2022-02-24 03:32:31,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5829 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=751, Invalid=44831, Unknown=0, NotChecked=0, Total=45582 [2022-02-24 03:32:31,090 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 275 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 38009 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s 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, 11.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:32:31,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 590 Invalid, 38319 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [310 Valid, 38009 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2022-02-24 03:32:31,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-02-24 03:32:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2022-02-24 03:32:31,394 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) [2022-02-24 03:32:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 518 transitions. [2022-02-24 03:32:31,395 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 518 transitions. Word has length 506 [2022-02-24 03:32:31,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:32:31,395 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 518 transitions. [2022-02-24 03:32:31,395 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) [2022-02-24 03:32:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 518 transitions. [2022-02-24 03:32:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-02-24 03:32:31,398 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:32:31,398 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] [2022-02-24 03:32:31,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-24 03:32:31,398 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:32:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:32:31,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1684311682, now seen corresponding path program 99 times [2022-02-24 03:32:31,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:32:31,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788386987] [2022-02-24 03:32:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:32:31,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:32:31,404 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:32:31,404 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:32:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:32:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 03:32:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:32:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:32:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:32:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:32:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:32:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:32:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:32:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:32:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:32:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:32:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:32:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:32:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:32:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:32:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:32:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:32:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:32:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:32:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:32:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:32:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:32:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:32:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:32:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:32:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:32:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:32:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:32:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:32:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:32:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:32:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:32:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:32:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:32:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 03:32:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 03:32:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 03:32:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 03:32:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 03:32:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 03:32:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 03:32:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 03:32:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 03:32:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 03:32:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 03:32:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 03:32:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 03:32:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 03:32:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 03:32:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 03:32:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:32:34,215 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:32:34,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788386987] [2022-02-24 03:32:34,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1788386987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:32:34,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:32:34,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [106] imperfect sequences [] total 106 [2022-02-24 03:32:34,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422101432] [2022-02-24 03:32:34,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:32:34,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-02-24 03:32:34,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:32:34,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-02-24 03:32:34,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2710, Invalid=8420, Unknown=0, NotChecked=0, Total=11130 [2022-02-24 03:32:34,218 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) [2022-02-24 03:32:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:32:38,403 INFO L93 Difference]: Finished difference Result 732 states and 784 transitions. [2022-02-24 03:32:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-02-24 03:32:38,403 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 [2022-02-24 03:32:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:32:38,405 INFO L225 Difference]: With dead ends: 732 [2022-02-24 03:32:38,405 INFO L226 Difference]: Without dead ends: 520 [2022-02-24 03:32:38,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10499 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=8328, Invalid=35144, Unknown=0, NotChecked=0, Total=43472 [2022-02-24 03:32:38,407 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 132 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:32:38,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 165 Invalid, 2467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 03:32:38,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-02-24 03:32:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 519. [2022-02-24 03:32:38,619 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) [2022-02-24 03:32:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 520 transitions. [2022-02-24 03:32:38,619 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 520 transitions. Word has length 514 [2022-02-24 03:32:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:32:38,619 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 520 transitions. [2022-02-24 03:32:38,620 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) [2022-02-24 03:32:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 520 transitions. [2022-02-24 03:32:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-02-24 03:32:38,622 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:32:38,622 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] [2022-02-24 03:32:38,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-24 03:32:38,622 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:32:38,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:32:38,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1594960732, now seen corresponding path program 100 times [2022-02-24 03:32:38,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:32:38,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231286120] [2022-02-24 03:32:38,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:32:38,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:32:38,627 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:32:38,627 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:32:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:32:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:32:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:32:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:32:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:32:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:32:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:32:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:32:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:32:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:32:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:32:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:32:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:32:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:32:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:32:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:32:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:32:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:32:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:32:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:32:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:32:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:32:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:32:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:32:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:32:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:32:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:32:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:32:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:32:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:32:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:32:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:32:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 03:32:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 03:32:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 03:32:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 03:32:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 03:32:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 03:32:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 03:32:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 03:32:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 03:32:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 03:32:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 03:32:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 03:32:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 03:32:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 03:32:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 03:32:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-24 03:32:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-24 03:32:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-24 03:32:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-24 03:32:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:32:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:32:43,101 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:32:43,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231286120] [2022-02-24 03:32:43,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [231286120] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:32:43,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:32:43,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [110] imperfect sequences [] total 110 [2022-02-24 03:32:43,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856236295] [2022-02-24 03:32:43,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:32:43,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-02-24 03:32:43,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:32:43,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-02-24 03:32:43,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=11770, Unknown=0, NotChecked=0, Total=11990 [2022-02-24 03:32:43,103 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) [2022-02-24 03:33:00,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:33:00,269 INFO L93 Difference]: Finished difference Result 532 states and 533 transitions. [2022-02-24 03:33:00,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-24 03:33:00,269 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 [2022-02-24 03:33:00,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:33:00,270 INFO L225 Difference]: With dead ends: 532 [2022-02-24 03:33:00,270 INFO L226 Difference]: Without dead ends: 530 [2022-02-24 03:33:00,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6047 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=765, Invalid=46541, Unknown=0, NotChecked=0, Total=47306 [2022-02-24 03:33:00,273 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 280 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 38949 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s 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, 11.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:33:00,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 593 Invalid, 39265 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [316 Valid, 38949 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-02-24 03:33:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-02-24 03:33:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 527. [2022-02-24 03:33:00,493 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) [2022-02-24 03:33:00,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 528 transitions. [2022-02-24 03:33:00,493 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 528 transitions. Word has length 516 [2022-02-24 03:33:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:33:00,493 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 528 transitions. [2022-02-24 03:33:00,494 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) [2022-02-24 03:33:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 528 transitions. [2022-02-24 03:33:00,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-02-24 03:33:00,496 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:33:00,496 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] [2022-02-24 03:33:00,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-24 03:33:00,496 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:33:00,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:33:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash -105220810, now seen corresponding path program 101 times [2022-02-24 03:33:00,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:33:00,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932715305] [2022-02-24 03:33:00,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:33:00,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:33:00,500 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:33:00,500 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:33:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:33:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 03:33:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 03:33:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 03:33:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 03:33:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 03:33:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 03:33:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 03:33:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 03:33:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 03:33:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 03:33:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 03:33:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 03:33:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 03:33:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 03:33:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 03:33:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 03:33:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 03:33:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 03:33:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 03:33:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 03:33:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 03:33:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 03:33:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 03:33:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 03:33:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 03:33:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 03:33:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 03:33:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 03:33:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 03:33:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 03:33:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 03:33:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 03:33:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 03:33:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 03:33:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 03:33:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 03:33:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 03:33:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 03:33:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 03:33:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 03:33:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 03:33:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 03:33:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 03:33:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 03:33:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 03:33:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 03:33:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-24 03:33:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-24 03:33:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-24 03:33:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-24 03:33:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-24 03:33:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:03,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:33:03,474 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:33:03,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932715305] [2022-02-24 03:33:03,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [932715305] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:33:03,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:33:03,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [108] imperfect sequences [] total 108 [2022-02-24 03:33:03,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552036250] [2022-02-24 03:33:03,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:33:03,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-02-24 03:33:03,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:33:03,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-02-24 03:33:03,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2815, Invalid=8741, Unknown=0, NotChecked=0, Total=11556 [2022-02-24 03:33:03,476 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) [2022-02-24 03:33:08,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:33:08,067 INFO L93 Difference]: Finished difference Result 746 states and 799 transitions. [2022-02-24 03:33:08,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-02-24 03:33:08,067 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 [2022-02-24 03:33:08,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:33:08,069 INFO L225 Difference]: With dead ends: 746 [2022-02-24 03:33:08,069 INFO L226 Difference]: Without dead ends: 530 [2022-02-24 03:33:08,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10913 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=8647, Invalid=36509, Unknown=0, NotChecked=0, Total=45156 [2022-02-24 03:33:08,071 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 134 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:33:08,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 187 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-24 03:33:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-02-24 03:33:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 529. [2022-02-24 03:33:08,302 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) [2022-02-24 03:33:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 530 transitions. [2022-02-24 03:33:08,303 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 530 transitions. Word has length 524 [2022-02-24 03:33:08,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:33:08,303 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 530 transitions. [2022-02-24 03:33:08,303 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) [2022-02-24 03:33:08,303 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 530 transitions. [2022-02-24 03:33:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-02-24 03:33:08,306 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:33:08,306 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] [2022-02-24 03:33:08,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-24 03:33:08,306 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:33:08,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:33:08,306 INFO L85 PathProgramCache]: Analyzing trace with hash 309326228, now seen corresponding path program 102 times [2022-02-24 03:33:08,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:33:08,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240326275] [2022-02-24 03:33:08,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:33:08,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:33:08,310 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:33:08,310 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:33:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:33:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:33:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:33:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:33:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:33:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:33:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:33:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:33:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:33:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:33:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:33:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:33:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:33:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:33:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:33:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:33:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:33:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:33:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:33:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:33:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:33:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:33:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:33:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:33:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:33:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:33:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:33:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:33:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:33:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:33:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:33:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:33:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:33:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 03:33:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 03:33:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 03:33:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 03:33:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 03:33:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 03:33:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 03:33:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 03:33:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 03:33:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 03:33:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 03:33:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 03:33:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 03:33:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 03:33:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 03:33:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-24 03:33:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-24 03:33:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-24 03:33:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-24 03:33:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:33:12,981 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:33:12,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240326275] [2022-02-24 03:33:12,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [240326275] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:33:12,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:33:12,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [112] imperfect sequences [] total 112 [2022-02-24 03:33:12,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46286684] [2022-02-24 03:33:12,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:33:12,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-24 03:33:12,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:33:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-24 03:33:12,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=12208, Unknown=0, NotChecked=0, Total=12432 [2022-02-24 03:33:12,983 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) [2022-02-24 03:33:30,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:33:30,891 INFO L93 Difference]: Finished difference Result 542 states and 543 transitions. [2022-02-24 03:33:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-24 03:33:30,891 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 [2022-02-24 03:33:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:33:30,892 INFO L225 Difference]: With dead ends: 542 [2022-02-24 03:33:30,892 INFO L226 Difference]: Without dead ends: 540 [2022-02-24 03:33:30,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6269 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=779, Invalid=48283, Unknown=0, NotChecked=0, Total=49062 [2022-02-24 03:33:30,895 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 285 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 40983 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s 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, 12.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:33:30,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 612 Invalid, 41305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [322 Valid, 40983 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2022-02-24 03:33:30,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-02-24 03:33:31,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 537. [2022-02-24 03:33:31,118 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) [2022-02-24 03:33:31,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 538 transitions. [2022-02-24 03:33:31,119 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 538 transitions. Word has length 526 [2022-02-24 03:33:31,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:33:31,120 INFO L470 AbstractCegarLoop]: Abstraction has 537 states and 538 transitions. [2022-02-24 03:33:31,120 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) [2022-02-24 03:33:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 538 transitions. [2022-02-24 03:33:31,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-02-24 03:33:31,123 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:33:31,123 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] [2022-02-24 03:33:31,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-24 03:33:31,123 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:33:31,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:33:31,123 INFO L85 PathProgramCache]: Analyzing trace with hash -873757842, now seen corresponding path program 103 times [2022-02-24 03:33:31,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:33:31,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645245561] [2022-02-24 03:33:31,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:33:31,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:33:31,138 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:33:31,138 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:33:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:33:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 03:33:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 03:33:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 03:33:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 03:33:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 03:33:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 03:33:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 03:33:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 03:33:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 03:33:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 03:33:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 03:33:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 03:33:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 03:33:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 03:33:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 03:33:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 03:33:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 03:33:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 03:33:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 03:33:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 03:33:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 03:33:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 03:33:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 03:33:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 03:33:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 03:33:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 03:33:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 03:33:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 03:33:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 03:33:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 03:33:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 03:33:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 03:33:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 03:33:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 03:33:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 03:33:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 03:33:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 03:33:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 03:33:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 03:33:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 03:33:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 03:33:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 03:33:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 03:33:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 03:33:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 03:33:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 03:33:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 03:33:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-24 03:33:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-24 03:33:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-24 03:33:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-24 03:33:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-24 03:33:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:34,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:33:34,142 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:33:34,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645245561] [2022-02-24 03:33:34,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [645245561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:33:34,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:33:34,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [110] imperfect sequences [] total 110 [2022-02-24 03:33:34,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399825317] [2022-02-24 03:33:34,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:33:34,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-02-24 03:33:34,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:33:34,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-02-24 03:33:34,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2922, Invalid=9068, Unknown=0, NotChecked=0, Total=11990 [2022-02-24 03:33:34,145 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) [2022-02-24 03:33:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:33:38,789 INFO L93 Difference]: Finished difference Result 760 states and 814 transitions. [2022-02-24 03:33:38,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-02-24 03:33:38,789 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 [2022-02-24 03:33:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:33:38,790 INFO L225 Difference]: With dead ends: 760 [2022-02-24 03:33:38,791 INFO L226 Difference]: Without dead ends: 540 [2022-02-24 03:33:38,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11335 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=8972, Invalid=37900, Unknown=0, NotChecked=0, Total=46872 [2022-02-24 03:33:38,793 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 136 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3009 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:33:38,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 179 Invalid, 3231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 3009 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-24 03:33:38,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-02-24 03:33:39,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539. [2022-02-24 03:33:39,019 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) [2022-02-24 03:33:39,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 540 transitions. [2022-02-24 03:33:39,020 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 540 transitions. Word has length 534 [2022-02-24 03:33:39,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:33:39,020 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 540 transitions. [2022-02-24 03:33:39,020 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) [2022-02-24 03:33:39,020 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 540 transitions. [2022-02-24 03:33:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2022-02-24 03:33:39,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:33:39,022 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] [2022-02-24 03:33:39,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-24 03:33:39,022 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:33:39,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:33:39,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1192254900, now seen corresponding path program 104 times [2022-02-24 03:33:39,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:33:39,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239730052] [2022-02-24 03:33:39,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:33:39,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:33:39,027 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:33:39,027 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:33:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:33:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:33:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:33:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:33:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:33:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:33:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:33:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:33:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:33:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:33:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:33:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:33:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:33:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:33:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:33:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:33:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:33:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:33:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:33:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:33:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:33:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:33:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:33:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:33:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:33:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:33:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:33:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:33:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:33:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:33:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:33:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:33:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:33:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:33:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 03:33:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 03:33:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 03:33:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 03:33:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 03:33:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 03:33:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 03:33:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 03:33:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 03:33:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 03:33:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 03:33:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 03:33:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 03:33:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 03:33:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 03:33:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-24 03:33:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-24 03:33:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-24 03:33:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-24 03:33:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:33:43,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:33:43,936 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:33:43,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239730052] [2022-02-24 03:33:43,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1239730052] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:33:43,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:33:43,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [114] imperfect sequences [] total 114 [2022-02-24 03:33:43,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290256998] [2022-02-24 03:33:43,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:33:43,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-02-24 03:33:43,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:33:43,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-02-24 03:33:43,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=12654, Unknown=0, NotChecked=0, Total=12882 [2022-02-24 03:33:43,939 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) [2022-02-24 03:34:02,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:34:02,417 INFO L93 Difference]: Finished difference Result 552 states and 553 transitions. [2022-02-24 03:34:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-24 03:34:02,418 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 [2022-02-24 03:34:02,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:34:02,419 INFO L225 Difference]: With dead ends: 552 [2022-02-24 03:34:02,419 INFO L226 Difference]: Without dead ends: 550 [2022-02-24 03:34:02,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6495 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=793, Invalid=50057, Unknown=0, NotChecked=0, Total=50850 [2022-02-24 03:34:02,421 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 290 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 42127 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s 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, 12.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:34:02,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 619 Invalid, 42455 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [328 Valid, 42127 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-02-24 03:34:02,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-02-24 03:34:02,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 547. [2022-02-24 03:34:02,658 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) [2022-02-24 03:34:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 548 transitions. [2022-02-24 03:34:02,671 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 548 transitions. Word has length 536 [2022-02-24 03:34:02,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:34:02,672 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 548 transitions. [2022-02-24 03:34:02,672 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) [2022-02-24 03:34:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 548 transitions. [2022-02-24 03:34:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-02-24 03:34:02,674 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:34:02,674 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] [2022-02-24 03:34:02,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-24 03:34:02,674 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:34:02,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:34:02,675 INFO L85 PathProgramCache]: Analyzing trace with hash 552270886, now seen corresponding path program 105 times [2022-02-24 03:34:02,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:34:02,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466424594] [2022-02-24 03:34:02,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:34:02,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:34:02,680 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:34:02,680 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:34:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:34:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 03:34:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 03:34:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 03:34:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 03:34:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 03:34:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 03:34:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 03:34:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 03:34:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 03:34:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 03:34:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 03:34:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 03:34:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 03:34:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 03:34:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 03:34:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 03:34:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 03:34:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 03:34:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 03:34:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 03:34:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 03:34:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 03:34:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 03:34:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 03:34:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 03:34:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 03:34:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 03:34:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 03:34:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 03:34:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 03:34:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 03:34:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 03:34:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 03:34:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 03:34:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 03:34:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 03:34:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 03:34:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 03:34:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 03:34:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 03:34:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 03:34:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 03:34:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 03:34:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 03:34:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 03:34:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 03:34:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 03:34:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 03:34:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-24 03:34:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-24 03:34:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-24 03:34:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-24 03:34:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-24 03:34:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:34:05,769 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:34:05,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466424594] [2022-02-24 03:34:05,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1466424594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:34:05,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:34:05,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [112] imperfect sequences [] total 112 [2022-02-24 03:34:05,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289722468] [2022-02-24 03:34:05,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:34:05,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-24 03:34:05,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:34:05,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-24 03:34:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3031, Invalid=9401, Unknown=0, NotChecked=0, Total=12432 [2022-02-24 03:34:05,771 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) [2022-02-24 03:34:10,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:34:10,610 INFO L93 Difference]: Finished difference Result 774 states and 829 transitions. [2022-02-24 03:34:10,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-24 03:34:10,610 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 [2022-02-24 03:34:10,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:34:10,611 INFO L225 Difference]: With dead ends: 774 [2022-02-24 03:34:10,612 INFO L226 Difference]: Without dead ends: 550 [2022-02-24 03:34:10,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11765 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=9303, Invalid=39317, Unknown=0, NotChecked=0, Total=48620 [2022-02-24 03:34:10,615 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 138 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:34:10,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 171 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-24 03:34:10,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-02-24 03:34:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 549. [2022-02-24 03:34:10,863 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) [2022-02-24 03:34:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 550 transitions. [2022-02-24 03:34:10,864 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 550 transitions. Word has length 544 [2022-02-24 03:34:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:34:10,864 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 550 transitions. [2022-02-24 03:34:10,864 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) [2022-02-24 03:34:10,864 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 550 transitions. [2022-02-24 03:34:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-02-24 03:34:10,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:34:10,876 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] [2022-02-24 03:34:10,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-24 03:34:10,876 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:34:10,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:34:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2076926588, now seen corresponding path program 106 times [2022-02-24 03:34:10,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:34:10,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982853824] [2022-02-24 03:34:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:34:10,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:34:10,881 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:34:10,881 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:34:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:34:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 03:34:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 03:34:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 03:34:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 03:34:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 03:34:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 03:34:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 03:34:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 03:34:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 03:34:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 03:34:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 03:34:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 03:34:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 03:34:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 03:34:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 03:34:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 03:34:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 03:34:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 03:34:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 03:34:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 03:34:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 03:34:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 03:34:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 03:34:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 03:34:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 03:34:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 03:34:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 03:34:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 03:34:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 03:34:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 03:34:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 03:34:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 03:34:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 03:34:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 03:34:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 03:34:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 03:34:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 03:34:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 03:34:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 03:34:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 03:34:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 03:34:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 03:34:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 03:34:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 03:34:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 03:34:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 03:34:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 03:34:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 03:34:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 03:34:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-24 03:34:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-24 03:34:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-24 03:34:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-24 03:34:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:34:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 03:34:15,829 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:34:15,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982853824] [2022-02-24 03:34:15,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [982853824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:34:15,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:34:15,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [116] imperfect sequences [] total 116 [2022-02-24 03:34:15,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19341362] [2022-02-24 03:34:15,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:34:15,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-02-24 03:34:15,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:34:15,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-02-24 03:34:15,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=13108, Unknown=0, NotChecked=0, Total=13340 [2022-02-24 03:34:15,831 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)