/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-crafted/simple_array_index_value_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 03:02:01,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 03:02:01,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 03:02:01,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 03:02:01,194 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 03:02:01,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 03:02:01,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 03:02:01,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 03:02:01,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 03:02:01,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 03:02:01,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 03:02:01,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 03:02:01,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 03:02:01,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 03:02:01,202 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 03:02:01,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 03:02:01,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 03:02:01,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 03:02:01,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 03:02:01,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 03:02:01,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 03:02:01,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 03:02:01,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 03:02:01,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 03:02:01,203 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-24 03:02:01,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 03:02:01,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 03:02:01,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 03:02:01,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 03:02:01,453 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 03:02:01,453 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 03:02:01,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2022-02-24 03:02:01,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec520b786/b1a1f554da9e4064989c24260516b88e/FLAG56e6743bf [2022-02-24 03:02:01,972 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 03:02:01,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2022-02-24 03:02:01,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec520b786/b1a1f554da9e4064989c24260516b88e/FLAG56e6743bf [2022-02-24 03:02:01,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec520b786/b1a1f554da9e4064989c24260516b88e [2022-02-24 03:02:02,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 03:02:02,002 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 03:02:02,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 03:02:02,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 03:02:02,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 03:02:02,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690cf411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02, skipping insertion in model container [2022-02-24 03:02:02,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 03:02:02,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 03:02:02,188 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-crafted/simple_array_index_value_2.i[919,932] [2022-02-24 03:02:02,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 03:02:02,210 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 03:02:02,219 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-crafted/simple_array_index_value_2.i[919,932] [2022-02-24 03:02:02,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 03:02:02,232 INFO L208 MainTranslator]: Completed translation [2022-02-24 03:02:02,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02 WrapperNode [2022-02-24 03:02:02,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 03:02:02,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 03:02:02,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 03:02:02,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 03:02:02,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 03:02:02,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 03:02:02,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 03:02:02,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 03:02:02,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (1/1) ... [2022-02-24 03:02:02,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 03:02:02,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 03:02:02,275 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 03:02:02,277 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 03:02:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 03:02:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 03:02:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 03:02:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-24 03:02:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-24 03:02:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 03:02:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 03:02:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 03:02:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-24 03:02:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-24 03:02:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 03:02:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 03:02:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-24 03:02:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-24 03:02:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-02-24 03:02:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 03:02:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-24 03:02:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 03:02:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 03:02:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 03:02:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 03:02:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 03:02:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 03:02:02,410 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 03:02:02,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 03:02:02,531 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 03:02:02,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 03:02:02,535 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-24 03:02:02,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:02:02 BoogieIcfgContainer [2022-02-24 03:02:02,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 03:02:02,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 03:02:02,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 03:02:02,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 03:02:02,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:02:02" (1/3) ... [2022-02-24 03:02:02,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e101298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:02:02, skipping insertion in model container [2022-02-24 03:02:02,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:02:02" (2/3) ... [2022-02-24 03:02:02,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e101298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:02:02, skipping insertion in model container [2022-02-24 03:02:02,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:02:02" (3/3) ... [2022-02-24 03:02:02,542 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_2.i [2022-02-24 03:02:02,546 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 03:02:02,546 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 03:02:02,596 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 03:02:02,601 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 03:02:02,602 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 03:02:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-24 03:02:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-24 03:02:02,632 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:02,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:02,633 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:02,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1210672905, now seen corresponding path program 1 times [2022-02-24 03:02:02,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:02,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902128906] [2022-02-24 03:02:02,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:02,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:02,704 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 03:02:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:02,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:02,895 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 03:02:02,896 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:02,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902128906] [2022-02-24 03:02:02,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1902128906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:02,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:02,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 03:02:02,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930704355] [2022-02-24 03:02:02,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:02,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 03:02:02,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:02,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 03:02:02,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 03:02:02,934 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 03:02:03,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:03,049 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2022-02-24 03:02:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 03:02:03,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 13 [2022-02-24 03:02:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:03,060 INFO L225 Difference]: With dead ends: 62 [2022-02-24 03:02:03,061 INFO L226 Difference]: Without dead ends: 33 [2022-02-24 03:02:03,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-24 03:02:03,067 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:03,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 33 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 03:02:03,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-02-24 03:02:03,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2022-02-24 03:02:03,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 03:02:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-02-24 03:02:03,101 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 13 [2022-02-24 03:02:03,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:03,101 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-02-24 03:02:03,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 03:02:03,102 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-02-24 03:02:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-24 03:02:03,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:03,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:03,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 03:02:03,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:03,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash 778735204, now seen corresponding path program 1 times [2022-02-24 03:02:03,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:03,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286869007] [2022-02-24 03:02:03,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:03,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:03,124 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:03,124 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,226 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 03:02:03,226 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:03,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286869007] [2022-02-24 03:02:03,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [286869007] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:03,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:03,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 03:02:03,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070949475] [2022-02-24 03:02:03,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:03,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 03:02:03,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:03,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 03:02:03,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-24 03:02:03,229 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 03:02:03,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:03,398 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-02-24 03:02:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 03:02:03,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 21 [2022-02-24 03:02:03,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:03,400 INFO L225 Difference]: With dead ends: 52 [2022-02-24 03:02:03,400 INFO L226 Difference]: Without dead ends: 41 [2022-02-24 03:02:03,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-24 03:02:03,402 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 33 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:03,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 31 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 03:02:03,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-02-24 03:02:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 30. [2022-02-24 03:02:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-24 03:02:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-02-24 03:02:03,422 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 21 [2022-02-24 03:02:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:03,422 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-02-24 03:02:03,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 03:02:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-02-24 03:02:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-02-24 03:02:03,423 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:03,424 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:03,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 03:02:03,424 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:03,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1692936895, now seen corresponding path program 2 times [2022-02-24 03:02:03,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:03,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568309473] [2022-02-24 03:02:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:03,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:03,437 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:03,437 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-24 03:02:03,615 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:03,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568309473] [2022-02-24 03:02:03,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1568309473] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:03,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:03,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 03:02:03,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818573251] [2022-02-24 03:02:03,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:03,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 03:02:03,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 03:02:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 03:02:03,618 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 03:02:03,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:03,815 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2022-02-24 03:02:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 03:02:03,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 29 [2022-02-24 03:02:03,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:03,819 INFO L225 Difference]: With dead ends: 60 [2022-02-24 03:02:03,819 INFO L226 Difference]: Without dead ends: 49 [2022-02-24 03:02:03,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-24 03:02:03,824 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 41 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:03,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 39 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 03:02:03,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-02-24 03:02:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2022-02-24 03:02:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-24 03:02:03,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-02-24 03:02:03,833 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 29 [2022-02-24 03:02:03,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:03,833 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-02-24 03:02:03,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 03:02:03,833 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-02-24 03:02:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-02-24 03:02:03,834 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:03,834 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:03,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 03:02:03,834 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:03,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:03,835 INFO L85 PathProgramCache]: Analyzing trace with hash 912079898, now seen corresponding path program 3 times [2022-02-24 03:02:03,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:03,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566330659] [2022-02-24 03:02:03,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:03,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:03,850 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:03,850 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:03,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-24 03:02:04,016 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:04,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566330659] [2022-02-24 03:02:04,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [566330659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:04,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:04,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-24 03:02:04,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280554480] [2022-02-24 03:02:04,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:04,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 03:02:04,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 03:02:04,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-24 03:02:04,018 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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 03:02:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:04,206 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2022-02-24 03:02:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-24 03:02:04,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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 37 [2022-02-24 03:02:04,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:04,208 INFO L225 Difference]: With dead ends: 68 [2022-02-24 03:02:04,208 INFO L226 Difference]: Without dead ends: 57 [2022-02-24 03:02:04,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-02-24 03:02:04,209 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 53 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:04,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 37 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 03:02:04,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-02-24 03:02:04,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 38. [2022-02-24 03:02:04,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-24 03:02:04,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-02-24 03:02:04,221 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 37 [2022-02-24 03:02:04,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:04,222 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-02-24 03:02:04,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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 03:02:04,222 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-02-24 03:02:04,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-24 03:02:04,223 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:04,223 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:04,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 03:02:04,224 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:04,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:04,224 INFO L85 PathProgramCache]: Analyzing trace with hash 42254965, now seen corresponding path program 4 times [2022-02-24 03:02:04,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:04,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266928413] [2022-02-24 03:02:04,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:04,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:04,228 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:04,228 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-24 03:02:04,355 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:04,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266928413] [2022-02-24 03:02:04,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1266928413] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:04,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:04,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 03:02:04,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496904936] [2022-02-24 03:02:04,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:04,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 03:02:04,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:04,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 03:02:04,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-24 03:02:04,357 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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 03:02:04,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:04,602 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2022-02-24 03:02:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 03:02:04,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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 45 [2022-02-24 03:02:04,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:04,604 INFO L225 Difference]: With dead ends: 76 [2022-02-24 03:02:04,604 INFO L226 Difference]: Without dead ends: 65 [2022-02-24 03:02:04,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-02-24 03:02:04,606 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 61 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:04,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 45 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 03:02:04,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-02-24 03:02:04,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2022-02-24 03:02:04,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-24 03:02:04,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-02-24 03:02:04,625 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 45 [2022-02-24 03:02:04,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:04,627 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-02-24 03:02:04,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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 03:02:04,627 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-02-24 03:02:04,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-24 03:02:04,629 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:04,629 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:04,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 03:02:04,630 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:04,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1041874384, now seen corresponding path program 5 times [2022-02-24 03:02:04,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:04,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19550351] [2022-02-24 03:02:04,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:04,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:04,636 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:04,636 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-02-24 03:02:04,827 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:04,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19550351] [2022-02-24 03:02:04,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [19550351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:04,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:04,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-24 03:02:04,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205250976] [2022-02-24 03:02:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:04,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-24 03:02:04,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:04,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-24 03:02:04,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-24 03:02:04,831 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 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 03:02:05,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:05,124 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-02-24 03:02:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-24 03:02:05,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 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 53 [2022-02-24 03:02:05,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:05,126 INFO L225 Difference]: With dead ends: 84 [2022-02-24 03:02:05,126 INFO L226 Difference]: Without dead ends: 73 [2022-02-24 03:02:05,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-02-24 03:02:05,127 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 67 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:05,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 58 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 03:02:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-02-24 03:02:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 46. [2022-02-24 03:02:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-24 03:02:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-02-24 03:02:05,139 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 53 [2022-02-24 03:02:05,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:05,140 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-02-24 03:02:05,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 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 03:02:05,140 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-02-24 03:02:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-24 03:02:05,141 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:05,141 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:05,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 03:02:05,141 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:05,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1926704683, now seen corresponding path program 6 times [2022-02-24 03:02:05,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:05,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932178255] [2022-02-24 03:02:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:05,145 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:05,146 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 03:02:05,288 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:05,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932178255] [2022-02-24 03:02:05,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [932178255] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:05,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:05,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-24 03:02:05,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133925998] [2022-02-24 03:02:05,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:05,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-24 03:02:05,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-24 03:02:05,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-24 03:02:05,290 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 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 03:02:05,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:05,637 INFO L93 Difference]: Finished difference Result 92 states and 108 transitions. [2022-02-24 03:02:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-24 03:02:05,638 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 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 61 [2022-02-24 03:02:05,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:05,639 INFO L225 Difference]: With dead ends: 92 [2022-02-24 03:02:05,639 INFO L226 Difference]: Without dead ends: 81 [2022-02-24 03:02:05,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-02-24 03:02:05,644 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 77 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:05,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 61 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 03:02:05,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-02-24 03:02:05,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 50. [2022-02-24 03:02:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-24 03:02:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-02-24 03:02:05,657 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 61 [2022-02-24 03:02:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:05,658 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-02-24 03:02:05,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 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 03:02:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-02-24 03:02:05,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 03:02:05,659 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:05,659 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:05,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 03:02:05,659 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:05,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1064833926, now seen corresponding path program 7 times [2022-02-24 03:02:05,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:05,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055774781] [2022-02-24 03:02:05,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:05,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:05,663 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:05,663 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:05,828 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-02-24 03:02:05,828 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:05,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055774781] [2022-02-24 03:02:05,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2055774781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:05,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:05,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-24 03:02:05,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020286830] [2022-02-24 03:02:05,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:05,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-24 03:02:05,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:05,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-24 03:02:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-02-24 03:02:05,830 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 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 03:02:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:06,245 INFO L93 Difference]: Finished difference Result 100 states and 118 transitions. [2022-02-24 03:02:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-24 03:02:06,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 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 69 [2022-02-24 03:02:06,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:06,247 INFO L225 Difference]: With dead ends: 100 [2022-02-24 03:02:06,248 INFO L226 Difference]: Without dead ends: 89 [2022-02-24 03:02:06,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-02-24 03:02:06,250 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 87 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:06,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 64 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 03:02:06,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-02-24 03:02:06,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 54. [2022-02-24 03:02:06,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 states have internal predecessors, (41), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-24 03:02:06,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-02-24 03:02:06,290 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 69 [2022-02-24 03:02:06,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:06,290 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-02-24 03:02:06,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 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 03:02:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-02-24 03:02:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-24 03:02:06,291 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:06,292 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:06,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 03:02:06,292 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1471639009, now seen corresponding path program 8 times [2022-02-24 03:02:06,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:06,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484796033] [2022-02-24 03:02:06,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:06,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:06,296 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:06,296 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:06,476 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-24 03:02:06,476 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:06,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484796033] [2022-02-24 03:02:06,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1484796033] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:06,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:06,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-24 03:02:06,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517353292] [2022-02-24 03:02:06,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:06,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-24 03:02:06,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:06,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-24 03:02:06,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-24 03:02:06,478 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 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 03:02:06,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:06,901 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2022-02-24 03:02:06,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-24 03:02:06,920 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 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 77 [2022-02-24 03:02:06,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:06,921 INFO L225 Difference]: With dead ends: 108 [2022-02-24 03:02:06,921 INFO L226 Difference]: Without dead ends: 97 [2022-02-24 03:02:06,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-02-24 03:02:06,922 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:06,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 52 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 03:02:06,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-02-24 03:02:06,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 58. [2022-02-24 03:02:06,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 42 states have internal predecessors, (44), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-24 03:02:06,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2022-02-24 03:02:06,933 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 77 [2022-02-24 03:02:06,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:06,933 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2022-02-24 03:02:06,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 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 03:02:06,933 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2022-02-24 03:02:06,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-24 03:02:06,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:06,934 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:06,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 03:02:06,934 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:06,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:06,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2075116228, now seen corresponding path program 9 times [2022-02-24 03:02:06,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:06,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933158159] [2022-02-24 03:02:06,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:06,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:06,938 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:06,938 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-02-24 03:02:07,164 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:07,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933158159] [2022-02-24 03:02:07,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1933158159] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:07,164 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:07,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-24 03:02:07,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281948274] [2022-02-24 03:02:07,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:07,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-24 03:02:07,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:07,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-24 03:02:07,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-02-24 03:02:07,166 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 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 03:02:07,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:07,706 INFO L93 Difference]: Finished difference Result 116 states and 138 transitions. [2022-02-24 03:02:07,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-24 03:02:07,706 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 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 85 [2022-02-24 03:02:07,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:07,707 INFO L225 Difference]: With dead ends: 116 [2022-02-24 03:02:07,707 INFO L226 Difference]: Without dead ends: 105 [2022-02-24 03:02:07,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-02-24 03:02:07,708 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 103 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:07,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 80 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 03:02:07,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-02-24 03:02:07,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 62. [2022-02-24 03:02:07,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-24 03:02:07,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-02-24 03:02:07,728 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 85 [2022-02-24 03:02:07,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:07,729 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-02-24 03:02:07,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 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 03:02:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-02-24 03:02:07,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-24 03:02:07,734 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:07,734 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:07,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 03:02:07,735 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:07,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:07,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1560444521, now seen corresponding path program 10 times [2022-02-24 03:02:07,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:07,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913854405] [2022-02-24 03:02:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:07,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:07,739 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:07,739 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-24 03:02:07,970 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:07,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913854405] [2022-02-24 03:02:07,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [913854405] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:07,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:07,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-24 03:02:07,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690627679] [2022-02-24 03:02:07,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:07,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-24 03:02:07,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:07,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-24 03:02:07,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-02-24 03:02:07,972 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 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 03:02:08,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:08,620 INFO L93 Difference]: Finished difference Result 124 states and 148 transitions. [2022-02-24 03:02:08,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-24 03:02:08,621 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 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 93 [2022-02-24 03:02:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:08,622 INFO L225 Difference]: With dead ends: 124 [2022-02-24 03:02:08,622 INFO L226 Difference]: Without dead ends: 113 [2022-02-24 03:02:08,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2022-02-24 03:02:08,623 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:08,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 68 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 03:02:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-02-24 03:02:08,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 66. [2022-02-24 03:02:08,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 48 states have internal predecessors, (50), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-24 03:02:08,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2022-02-24 03:02:08,652 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 93 [2022-02-24 03:02:08,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:08,652 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2022-02-24 03:02:08,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 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 03:02:08,653 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2022-02-24 03:02:08,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-24 03:02:08,653 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:08,654 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:08,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 03:02:08,654 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:08,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:08,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1501938958, now seen corresponding path program 11 times [2022-02-24 03:02:08,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:08,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927958834] [2022-02-24 03:02:08,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:08,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:08,657 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:08,658 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-02-24 03:02:08,838 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:08,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927958834] [2022-02-24 03:02:08,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [927958834] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:08,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:08,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-24 03:02:08,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523001253] [2022-02-24 03:02:08,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:08,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-24 03:02:08,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:08,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-24 03:02:08,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-02-24 03:02:08,839 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 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 03:02:09,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:09,563 INFO L93 Difference]: Finished difference Result 132 states and 158 transitions. [2022-02-24 03:02:09,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-24 03:02:09,563 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 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 101 [2022-02-24 03:02:09,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:09,566 INFO L225 Difference]: With dead ends: 132 [2022-02-24 03:02:09,566 INFO L226 Difference]: Without dead ends: 121 [2022-02-24 03:02:09,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2022-02-24 03:02:09,567 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 135 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:09,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 56 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 03:02:09,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-02-24 03:02:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 70. [2022-02-24 03:02:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.0392156862745099) internal successors, (53), 51 states have internal predecessors, (53), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-24 03:02:09,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2022-02-24 03:02:09,586 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 101 [2022-02-24 03:02:09,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:09,586 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2022-02-24 03:02:09,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 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 03:02:09,586 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2022-02-24 03:02:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-24 03:02:09,587 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:09,587 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:09,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 03:02:09,588 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:09,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1769903795, now seen corresponding path program 12 times [2022-02-24 03:02:09,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:09,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395562425] [2022-02-24 03:02:09,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:09,592 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:09,592 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-02-24 03:02:09,869 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:09,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395562425] [2022-02-24 03:02:09,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1395562425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:09,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:09,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-24 03:02:09,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484323362] [2022-02-24 03:02:09,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:09,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-24 03:02:09,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:09,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-24 03:02:09,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-02-24 03:02:09,870 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 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 03:02:10,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:10,621 INFO L93 Difference]: Finished difference Result 140 states and 168 transitions. [2022-02-24 03:02:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-24 03:02:10,622 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 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 109 [2022-02-24 03:02:10,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:10,623 INFO L225 Difference]: With dead ends: 140 [2022-02-24 03:02:10,623 INFO L226 Difference]: Without dead ends: 129 [2022-02-24 03:02:10,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2022-02-24 03:02:10,624 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 139 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:10,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 74 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 03:02:10,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-02-24 03:02:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 74. [2022-02-24 03:02:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 54 states have (on average 1.037037037037037) internal successors, (56), 54 states have internal predecessors, (56), 16 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-24 03:02:10,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2022-02-24 03:02:10,642 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 109 [2022-02-24 03:02:10,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:10,643 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2022-02-24 03:02:10,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 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 03:02:10,643 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2022-02-24 03:02:10,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-24 03:02:10,644 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:10,644 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:10,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 03:02:10,644 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:10,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:10,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1882321752, now seen corresponding path program 13 times [2022-02-24 03:02:10,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:10,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190083176] [2022-02-24 03:02:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:10,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:10,648 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:10,648 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-02-24 03:02:10,900 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:10,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190083176] [2022-02-24 03:02:10,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [190083176] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:10,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:10,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-24 03:02:10,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152092109] [2022-02-24 03:02:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:10,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-24 03:02:10,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:10,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-24 03:02:10,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-02-24 03:02:10,903 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 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 03:02:11,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:11,898 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2022-02-24 03:02:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-24 03:02:11,898 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 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 117 [2022-02-24 03:02:11,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:11,899 INFO L225 Difference]: With dead ends: 148 [2022-02-24 03:02:11,899 INFO L226 Difference]: Without dead ends: 137 [2022-02-24 03:02:11,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2022-02-24 03:02:11,900 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 129 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:11,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 127 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 03:02:11,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-02-24 03:02:11,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 78. [2022-02-24 03:02:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 57 states have internal predecessors, (59), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-24 03:02:11,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2022-02-24 03:02:11,911 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 117 [2022-02-24 03:02:11,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:11,912 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2022-02-24 03:02:11,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 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 03:02:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2022-02-24 03:02:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-24 03:02:11,913 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:11,913 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:11,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 03:02:11,913 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:11,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:11,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1004854013, now seen corresponding path program 14 times [2022-02-24 03:02:11,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:11,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146054119] [2022-02-24 03:02:11,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:11,916 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:11,917 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-02-24 03:02:12,198 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:12,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146054119] [2022-02-24 03:02:12,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [146054119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:12,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:12,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-24 03:02:12,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103733607] [2022-02-24 03:02:12,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:12,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-24 03:02:12,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:12,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-24 03:02:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-02-24 03:02:12,199 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 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 03:02:13,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:13,141 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2022-02-24 03:02:13,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-24 03:02:13,142 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 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 125 [2022-02-24 03:02:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:13,145 INFO L225 Difference]: With dead ends: 156 [2022-02-24 03:02:13,145 INFO L226 Difference]: Without dead ends: 145 [2022-02-24 03:02:13,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2022-02-24 03:02:13,169 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 153 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:13,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 95 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 03:02:13,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-02-24 03:02:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 82. [2022-02-24 03:02:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 60 states have internal predecessors, (62), 18 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-24 03:02:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 97 transitions. [2022-02-24 03:02:13,199 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 97 transitions. Word has length 125 [2022-02-24 03:02:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:13,200 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 97 transitions. [2022-02-24 03:02:13,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 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 03:02:13,200 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 97 transitions. [2022-02-24 03:02:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 03:02:13,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:13,201 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:13,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 03:02:13,201 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:13,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:13,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2049159774, now seen corresponding path program 15 times [2022-02-24 03:02:13,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:13,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165988111] [2022-02-24 03:02:13,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:13,205 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:13,205 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-02-24 03:02:13,502 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:13,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165988111] [2022-02-24 03:02:13,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1165988111] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:13,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:13,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-24 03:02:13,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571451423] [2022-02-24 03:02:13,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:13,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-24 03:02:13,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:13,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-24 03:02:13,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-02-24 03:02:13,503 INFO L87 Difference]: Start difference. First operand 82 states and 97 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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 03:02:14,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:14,582 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2022-02-24 03:02:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-24 03:02:14,582 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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 133 [2022-02-24 03:02:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:14,587 INFO L225 Difference]: With dead ends: 164 [2022-02-24 03:02:14,587 INFO L226 Difference]: Without dead ends: 153 [2022-02-24 03:02:14,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2022-02-24 03:02:14,592 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 159 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:14,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 108 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 03:02:14,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-02-24 03:02:14,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 86. [2022-02-24 03:02:14,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 63 states have (on average 1.0317460317460319) internal successors, (65), 63 states have internal predecessors, (65), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-24 03:02:14,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2022-02-24 03:02:14,619 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 133 [2022-02-24 03:02:14,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:14,647 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2022-02-24 03:02:14,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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 03:02:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2022-02-24 03:02:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-02-24 03:02:14,649 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:14,649 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:14,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 03:02:14,650 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:14,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:14,650 INFO L85 PathProgramCache]: Analyzing trace with hash 228766905, now seen corresponding path program 16 times [2022-02-24 03:02:14,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:14,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759170192] [2022-02-24 03:02:14,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:14,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:14,654 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:14,654 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-02-24 03:02:14,975 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:14,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759170192] [2022-02-24 03:02:14,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1759170192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:14,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:14,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-24 03:02:14,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813141248] [2022-02-24 03:02:14,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:14,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-24 03:02:14,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:14,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-24 03:02:14,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-02-24 03:02:14,977 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 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 03:02:16,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:16,352 INFO L93 Difference]: Finished difference Result 172 states and 208 transitions. [2022-02-24 03:02:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-24 03:02:16,353 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 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 141 [2022-02-24 03:02:16,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:16,353 INFO L225 Difference]: With dead ends: 172 [2022-02-24 03:02:16,353 INFO L226 Difference]: Without dead ends: 161 [2022-02-24 03:02:16,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=1179, Unknown=0, NotChecked=0, Total=1332 [2022-02-24 03:02:16,354 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 155 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:16,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 146 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-24 03:02:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-02-24 03:02:16,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 90. [2022-02-24 03:02:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 66 states have internal predecessors, (68), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-24 03:02:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2022-02-24 03:02:16,373 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 141 [2022-02-24 03:02:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:16,374 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2022-02-24 03:02:16,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 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 03:02:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2022-02-24 03:02:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-24 03:02:16,375 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:16,375 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:16,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 03:02:16,375 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:16,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:16,375 INFO L85 PathProgramCache]: Analyzing trace with hash -279761900, now seen corresponding path program 17 times [2022-02-24 03:02:16,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:16,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248285191] [2022-02-24 03:02:16,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:16,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:16,378 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:16,378 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:16,678 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-02-24 03:02:16,678 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:16,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248285191] [2022-02-24 03:02:16,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [248285191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:16,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:16,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-24 03:02:16,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653881430] [2022-02-24 03:02:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:16,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-24 03:02:16,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:16,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-24 03:02:16,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-02-24 03:02:16,680 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 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 03:02:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:18,081 INFO L93 Difference]: Finished difference Result 180 states and 218 transitions. [2022-02-24 03:02:18,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-24 03:02:18,086 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 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 149 [2022-02-24 03:02:18,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:18,088 INFO L225 Difference]: With dead ends: 180 [2022-02-24 03:02:18,088 INFO L226 Difference]: Without dead ends: 169 [2022-02-24 03:02:18,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=1320, Unknown=0, NotChecked=0, Total=1482 [2022-02-24 03:02:18,091 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 183 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:18,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 104 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 03:02:18,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-02-24 03:02:18,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 94. [2022-02-24 03:02:18,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 69 states have internal predecessors, (71), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-24 03:02:18,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2022-02-24 03:02:18,113 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 149 [2022-02-24 03:02:18,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:18,114 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2022-02-24 03:02:18,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 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 03:02:18,114 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2022-02-24 03:02:18,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-24 03:02:18,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:18,115 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:18,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 03:02:18,116 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:18,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:18,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1527768977, now seen corresponding path program 18 times [2022-02-24 03:02:18,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:18,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486750431] [2022-02-24 03:02:18,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:18,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:18,120 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:18,120 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:18,473 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-02-24 03:02:18,473 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:18,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486750431] [2022-02-24 03:02:18,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [486750431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:18,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:18,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-24 03:02:18,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796434599] [2022-02-24 03:02:18,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:18,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-24 03:02:18,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:18,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-24 03:02:18,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-02-24 03:02:18,474 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 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 03:02:19,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:19,731 INFO L93 Difference]: Finished difference Result 188 states and 228 transitions. [2022-02-24 03:02:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-24 03:02:19,732 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 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 157 [2022-02-24 03:02:19,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:19,733 INFO L225 Difference]: With dead ends: 188 [2022-02-24 03:02:19,733 INFO L226 Difference]: Without dead ends: 177 [2022-02-24 03:02:19,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=1469, Unknown=0, NotChecked=0, Total=1640 [2022-02-24 03:02:19,734 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 205 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:19,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 77 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 03:02:19,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-02-24 03:02:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 98. [2022-02-24 03:02:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-24 03:02:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2022-02-24 03:02:19,761 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 157 [2022-02-24 03:02:19,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:19,763 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2022-02-24 03:02:19,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 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 03:02:19,764 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2022-02-24 03:02:19,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-24 03:02:19,767 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:19,767 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:19,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 03:02:19,767 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:19,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash -919307830, now seen corresponding path program 19 times [2022-02-24 03:02:19,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:19,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991405595] [2022-02-24 03:02:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:19,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:19,772 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:19,773 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-02-24 03:02:20,175 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:20,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991405595] [2022-02-24 03:02:20,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [991405595] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:20,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:20,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-24 03:02:20,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806609611] [2022-02-24 03:02:20,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:20,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-24 03:02:20,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:20,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-24 03:02:20,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2022-02-24 03:02:20,177 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 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 03:02:21,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:21,904 INFO L93 Difference]: Finished difference Result 196 states and 238 transitions. [2022-02-24 03:02:21,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-24 03:02:21,904 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 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 165 [2022-02-24 03:02:21,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:21,906 INFO L225 Difference]: With dead ends: 196 [2022-02-24 03:02:21,906 INFO L226 Difference]: Without dead ends: 185 [2022-02-24 03:02:21,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=1626, Unknown=0, NotChecked=0, Total=1806 [2022-02-24 03:02:21,907 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 201 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3348 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 3348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:21,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 115 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 3348 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-24 03:02:21,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-24 03:02:21,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 102. [2022-02-24 03:02:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 75 states have internal predecessors, (77), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-24 03:02:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2022-02-24 03:02:21,931 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 165 [2022-02-24 03:02:21,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:21,932 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2022-02-24 03:02:21,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 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 03:02:21,932 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2022-02-24 03:02:21,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 03:02:21,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:21,934 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:21,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 03:02:21,934 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:21,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:21,934 INFO L85 PathProgramCache]: Analyzing trace with hash 198922277, now seen corresponding path program 20 times [2022-02-24 03:02:21,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:21,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965565365] [2022-02-24 03:02:21,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:21,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:21,950 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:21,950 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-02-24 03:02:22,303 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:22,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965565365] [2022-02-24 03:02:22,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [965565365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:22,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:22,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-24 03:02:22,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932629565] [2022-02-24 03:02:22,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:22,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-24 03:02:22,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:22,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-24 03:02:22,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-02-24 03:02:22,305 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 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 03:02:24,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:24,039 INFO L93 Difference]: Finished difference Result 204 states and 248 transitions. [2022-02-24 03:02:24,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-24 03:02:24,039 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 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 173 [2022-02-24 03:02:24,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:24,041 INFO L225 Difference]: With dead ends: 204 [2022-02-24 03:02:24,041 INFO L226 Difference]: Without dead ends: 193 [2022-02-24 03:02:24,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=1791, Unknown=0, NotChecked=0, Total=1980 [2022-02-24 03:02:24,042 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 221 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3424 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 3424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:24,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 93 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 3424 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-24 03:02:24,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-02-24 03:02:24,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 106. [2022-02-24 03:02:24,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.0256410256410255) internal successors, (80), 78 states have internal predecessors, (80), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-24 03:02:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2022-02-24 03:02:24,062 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 173 [2022-02-24 03:02:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:24,062 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2022-02-24 03:02:24,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 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 03:02:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2022-02-24 03:02:24,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-24 03:02:24,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:24,063 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:24,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 03:02:24,064 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:24,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash 832543616, now seen corresponding path program 21 times [2022-02-24 03:02:24,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:24,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846328434] [2022-02-24 03:02:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:24,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:24,067 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:24,067 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:24,529 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-02-24 03:02:24,529 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:24,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846328434] [2022-02-24 03:02:24,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [846328434] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:24,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:24,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-24 03:02:24,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598785642] [2022-02-24 03:02:24,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:24,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-24 03:02:24,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:24,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-24 03:02:24,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-02-24 03:02:24,531 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 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 03:02:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:26,702 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2022-02-24 03:02:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-24 03:02:26,702 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 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 181 [2022-02-24 03:02:26,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:26,703 INFO L225 Difference]: With dead ends: 212 [2022-02-24 03:02:26,703 INFO L226 Difference]: Without dead ends: 201 [2022-02-24 03:02:26,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-02-24 03:02:26,706 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 193 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4768 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 4990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 4768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:26,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 191 Invalid, 4990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 4768 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-24 03:02:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-02-24 03:02:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 110. [2022-02-24 03:02:26,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.0246913580246915) internal successors, (83), 81 states have internal predecessors, (83), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-24 03:02:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 132 transitions. [2022-02-24 03:02:26,742 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 132 transitions. Word has length 181 [2022-02-24 03:02:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:26,743 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 132 transitions. [2022-02-24 03:02:26,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 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 03:02:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 132 transitions. [2022-02-24 03:02:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-24 03:02:26,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:26,745 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:26,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 03:02:26,745 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:26,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash 339499995, now seen corresponding path program 22 times [2022-02-24 03:02:26,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:26,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259911402] [2022-02-24 03:02:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:26,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:26,749 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:26,750 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-02-24 03:02:27,193 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:27,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259911402] [2022-02-24 03:02:27,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1259911402] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:27,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:27,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-24 03:02:27,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231054785] [2022-02-24 03:02:27,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:27,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-24 03:02:27,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:27,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-24 03:02:27,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2022-02-24 03:02:27,195 INFO L87 Difference]: Start difference. First operand 110 states and 132 transitions. Second operand has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 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 03:02:29,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:29,250 INFO L93 Difference]: Finished difference Result 220 states and 268 transitions. [2022-02-24 03:02:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-24 03:02:29,251 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 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 189 [2022-02-24 03:02:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:29,252 INFO L225 Difference]: With dead ends: 220 [2022-02-24 03:02:29,252 INFO L226 Difference]: Without dead ends: 209 [2022-02-24 03:02:29,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=2145, Unknown=0, NotChecked=0, Total=2352 [2022-02-24 03:02:29,253 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 245 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4004 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 4280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 4004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:29,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 89 Invalid, 4280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 4004 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-24 03:02:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-02-24 03:02:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 114. [2022-02-24 03:02:29,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.0238095238095237) internal successors, (86), 84 states have internal predecessors, (86), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-24 03:02:29,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-02-24 03:02:29,286 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 189 [2022-02-24 03:02:29,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:29,286 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-02-24 03:02:29,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 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 03:02:29,286 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-02-24 03:02:29,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-24 03:02:29,288 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:29,288 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:29,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 03:02:29,288 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:29,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:29,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1569943242, now seen corresponding path program 23 times [2022-02-24 03:02:29,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:29,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335122301] [2022-02-24 03:02:29,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:29,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:29,292 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:29,292 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:02:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2022-02-24 03:02:29,761 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:29,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335122301] [2022-02-24 03:02:29,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1335122301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:29,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:29,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-24 03:02:29,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187451925] [2022-02-24 03:02:29,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:29,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-24 03:02:29,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:29,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-24 03:02:29,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2022-02-24 03:02:29,764 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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 03:02:32,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:32,660 INFO L93 Difference]: Finished difference Result 228 states and 278 transitions. [2022-02-24 03:02:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-24 03:02:32,661 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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 197 [2022-02-24 03:02:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:32,662 INFO L225 Difference]: With dead ends: 228 [2022-02-24 03:02:32,662 INFO L226 Difference]: Without dead ends: 217 [2022-02-24 03:02:32,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=2334, Unknown=0, NotChecked=0, Total=2550 [2022-02-24 03:02:32,663 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 227 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5167 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 5427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 5167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:32,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 162 Invalid, 5427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 5167 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 03:02:32,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-24 03:02:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 118. [2022-02-24 03:02:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 87 states have internal predecessors, (89), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-24 03:02:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 142 transitions. [2022-02-24 03:02:32,693 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 142 transitions. Word has length 197 [2022-02-24 03:02:32,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:32,693 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 142 transitions. [2022-02-24 03:02:32,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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 03:02:32,694 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 142 transitions. [2022-02-24 03:02:32,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-02-24 03:02:32,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:32,695 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:32,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 03:02:32,695 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:32,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:32,695 INFO L85 PathProgramCache]: Analyzing trace with hash -538231919, now seen corresponding path program 24 times [2022-02-24 03:02:32,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:32,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564524376] [2022-02-24 03:02:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:32,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:32,698 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:32,699 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:02:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:02:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-02-24 03:02:33,360 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:33,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564524376] [2022-02-24 03:02:33,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1564524376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:33,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:33,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-24 03:02:33,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320760836] [2022-02-24 03:02:33,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:33,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-24 03:02:33,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:33,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-24 03:02:33,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-02-24 03:02:33,362 INFO L87 Difference]: Start difference. First operand 118 states and 142 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 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 03:02:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:35,952 INFO L93 Difference]: Finished difference Result 236 states and 288 transitions. [2022-02-24 03:02:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-24 03:02:35,953 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 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 205 [2022-02-24 03:02:35,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:35,954 INFO L225 Difference]: With dead ends: 236 [2022-02-24 03:02:35,954 INFO L226 Difference]: Without dead ends: 225 [2022-02-24 03:02:35,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=2531, Unknown=0, NotChecked=0, Total=2756 [2022-02-24 03:02:35,955 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 217 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 6166 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 6418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 6166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:35,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 215 Invalid, 6418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 6166 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-24 03:02:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-02-24 03:02:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 122. [2022-02-24 03:02:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 90 states have internal predecessors, (92), 28 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-24 03:02:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 147 transitions. [2022-02-24 03:02:35,983 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 147 transitions. Word has length 205 [2022-02-24 03:02:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:35,983 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 147 transitions. [2022-02-24 03:02:35,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 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 03:02:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 147 transitions. [2022-02-24 03:02:35,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-24 03:02:35,984 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:35,984 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:35,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 03:02:35,984 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:35,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:35,985 INFO L85 PathProgramCache]: Analyzing trace with hash -445424916, now seen corresponding path program 25 times [2022-02-24 03:02:35,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:35,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011689348] [2022-02-24 03:02:35,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:35,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:36,000 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:36,000 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:02:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:02:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:02:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-02-24 03:02:36,528 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:36,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011689348] [2022-02-24 03:02:36,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1011689348] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:36,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:36,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-24 03:02:36,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322328509] [2022-02-24 03:02:36,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:36,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-24 03:02:36,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:36,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-24 03:02:36,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-02-24 03:02:36,530 INFO L87 Difference]: Start difference. First operand 122 states and 147 transitions. Second operand has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 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 03:02:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:38,946 INFO L93 Difference]: Finished difference Result 244 states and 298 transitions. [2022-02-24 03:02:38,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-24 03:02:38,946 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 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 213 [2022-02-24 03:02:38,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:38,948 INFO L225 Difference]: With dead ends: 244 [2022-02-24 03:02:38,948 INFO L226 Difference]: Without dead ends: 233 [2022-02-24 03:02:38,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=234, Invalid=2736, Unknown=0, NotChecked=0, Total=2970 [2022-02-24 03:02:38,949 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 247 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6001 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 6285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 6001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:38,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 168 Invalid, 6285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 6001 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-24 03:02:38,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-02-24 03:02:38,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 126. [2022-02-24 03:02:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 93 states have (on average 1.021505376344086) internal successors, (95), 93 states have internal predecessors, (95), 29 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-24 03:02:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2022-02-24 03:02:38,990 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 213 [2022-02-24 03:02:38,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:38,991 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2022-02-24 03:02:38,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 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 03:02:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2022-02-24 03:02:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-02-24 03:02:38,992 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:38,992 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:38,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 03:02:38,992 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:38,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash -524292281, now seen corresponding path program 26 times [2022-02-24 03:02:38,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:38,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010767671] [2022-02-24 03:02:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:38,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:39,000 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:39,001 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:02:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:02:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:02:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:02:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2022-02-24 03:02:39,567 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:39,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010767671] [2022-02-24 03:02:39,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2010767671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:39,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:39,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-24 03:02:39,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153466463] [2022-02-24 03:02:39,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:39,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-24 03:02:39,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:39,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-24 03:02:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=787, Unknown=0, NotChecked=0, Total=870 [2022-02-24 03:02:39,568 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 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 03:02:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:42,366 INFO L93 Difference]: Finished difference Result 252 states and 308 transitions. [2022-02-24 03:02:42,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-24 03:02:42,366 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 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 221 [2022-02-24 03:02:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:42,367 INFO L225 Difference]: With dead ends: 252 [2022-02-24 03:02:42,368 INFO L226 Difference]: Without dead ends: 241 [2022-02-24 03:02:42,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=243, Invalid=2949, Unknown=0, NotChecked=0, Total=3192 [2022-02-24 03:02:42,369 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 263 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6253 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 6555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 6253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:42,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 156 Invalid, 6555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 6253 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-24 03:02:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-02-24 03:02:42,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 130. [2022-02-24 03:02:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 96 states have (on average 1.0208333333333333) internal successors, (98), 96 states have internal predecessors, (98), 30 states have call successors, (30), 4 states have call predecessors, (30), 3 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-24 03:02:42,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 157 transitions. [2022-02-24 03:02:42,399 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 157 transitions. Word has length 221 [2022-02-24 03:02:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:42,399 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 157 transitions. [2022-02-24 03:02:42,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 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 03:02:42,399 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 157 transitions. [2022-02-24 03:02:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-02-24 03:02:42,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:42,400 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:42,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 03:02:42,400 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:42,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:42,400 INFO L85 PathProgramCache]: Analyzing trace with hash 344717474, now seen corresponding path program 27 times [2022-02-24 03:02:42,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:42,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053836593] [2022-02-24 03:02:42,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:42,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:42,403 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:42,403 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:02:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:02:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:02:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:02:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:02:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-02-24 03:02:42,913 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:42,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053836593] [2022-02-24 03:02:42,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2053836593] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:42,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:42,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-02-24 03:02:42,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658123543] [2022-02-24 03:02:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:42,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-24 03:02:42,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:42,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-24 03:02:42,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2022-02-24 03:02:42,914 INFO L87 Difference]: Start difference. First operand 130 states and 157 transitions. Second operand has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 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 03:02:46,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:46,585 INFO L93 Difference]: Finished difference Result 260 states and 318 transitions. [2022-02-24 03:02:46,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-24 03:02:46,586 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 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 229 [2022-02-24 03:02:46,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:46,587 INFO L225 Difference]: With dead ends: 260 [2022-02-24 03:02:46,587 INFO L226 Difference]: Without dead ends: 249 [2022-02-24 03:02:46,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=3170, Unknown=0, NotChecked=0, Total=3422 [2022-02-24 03:02:46,588 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 241 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7744 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 8026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 7744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:46,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 239 Invalid, 8026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 7744 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-24 03:02:46,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-02-24 03:02:46,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 134. [2022-02-24 03:02:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 99 states have (on average 1.02020202020202) internal successors, (101), 99 states have internal predecessors, (101), 31 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-24 03:02:46,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 162 transitions. [2022-02-24 03:02:46,648 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 162 transitions. Word has length 229 [2022-02-24 03:02:46,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:46,649 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 162 transitions. [2022-02-24 03:02:46,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 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 03:02:46,649 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 162 transitions. [2022-02-24 03:02:46,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-02-24 03:02:46,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:46,654 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:46,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 03:02:46,655 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:46,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:46,655 INFO L85 PathProgramCache]: Analyzing trace with hash -661489923, now seen corresponding path program 28 times [2022-02-24 03:02:46,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:46,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845556703] [2022-02-24 03:02:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:46,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:46,672 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:46,673 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:02:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:02:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:02:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:02:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:02:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:02:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2022-02-24 03:02:47,509 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:47,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845556703] [2022-02-24 03:02:47,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1845556703] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:47,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:47,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-24 03:02:47,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124561481] [2022-02-24 03:02:47,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:47,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-24 03:02:47,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:47,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-24 03:02:47,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2022-02-24 03:02:47,511 INFO L87 Difference]: Start difference. First operand 134 states and 162 transitions. Second operand has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 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 03:02:51,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:51,641 INFO L93 Difference]: Finished difference Result 268 states and 328 transitions. [2022-02-24 03:02:51,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-24 03:02:51,641 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 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 237 [2022-02-24 03:02:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:51,645 INFO L225 Difference]: With dead ends: 268 [2022-02-24 03:02:51,646 INFO L226 Difference]: Without dead ends: 257 [2022-02-24 03:02:51,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=261, Invalid=3399, Unknown=0, NotChecked=0, Total=3660 [2022-02-24 03:02:51,648 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 259 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 7975 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 8277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 7975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:51,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 222 Invalid, 8277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 7975 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-24 03:02:51,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-24 03:02:51,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 138. [2022-02-24 03:02:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 102 states have (on average 1.0196078431372548) internal successors, (104), 102 states have internal predecessors, (104), 32 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-24 03:02:51,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2022-02-24 03:02:51,697 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 237 [2022-02-24 03:02:51,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:51,698 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2022-02-24 03:02:51,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 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 03:02:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2022-02-24 03:02:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-02-24 03:02:51,699 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:51,699 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:51,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 03:02:51,699 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:51,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:51,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1718719912, now seen corresponding path program 29 times [2022-02-24 03:02:51,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:51,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231727583] [2022-02-24 03:02:51,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:51,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:51,704 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:51,704 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:02:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:02:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:02:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:02:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:02:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:02:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:02:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:52,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2022-02-24 03:02:52,301 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:52,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231727583] [2022-02-24 03:02:52,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1231727583] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:52,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:52,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-02-24 03:02:52,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045398321] [2022-02-24 03:02:52,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:52,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-24 03:02:52,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:52,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-24 03:02:52,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=964, Unknown=0, NotChecked=0, Total=1056 [2022-02-24 03:02:52,302 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 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 03:02:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:55,144 INFO L93 Difference]: Finished difference Result 276 states and 338 transitions. [2022-02-24 03:02:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-24 03:02:55,144 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 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 245 [2022-02-24 03:02:55,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:55,160 INFO L225 Difference]: With dead ends: 276 [2022-02-24 03:02:55,160 INFO L226 Difference]: Without dead ends: 265 [2022-02-24 03:02:55,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=3636, Unknown=0, NotChecked=0, Total=3906 [2022-02-24 03:02:55,175 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 291 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 7723 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 8059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 7723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:55,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 170 Invalid, 8059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 7723 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-24 03:02:55,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-02-24 03:02:55,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 142. [2022-02-24 03:02:55,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 105 states have (on average 1.019047619047619) internal successors, (107), 105 states have internal predecessors, (107), 33 states have call successors, (33), 4 states have call predecessors, (33), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-24 03:02:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-02-24 03:02:55,234 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 245 [2022-02-24 03:02:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:55,234 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-02-24 03:02:55,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 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 03:02:55,234 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-02-24 03:02:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-02-24 03:02:55,235 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:55,235 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:55,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 03:02:55,235 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:55,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash -650456397, now seen corresponding path program 30 times [2022-02-24 03:02:55,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:55,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743744806] [2022-02-24 03:02:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:55,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:55,240 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:55,240 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:02:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:02:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:02:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:02:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:02:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:02:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:02:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:02:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:02:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:02:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:02:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:02:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:02:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:02:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:02:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:02:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:02:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:02:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:02:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:02:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:02:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:02:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:02:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:02:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:02:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:02:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:02:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:02:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:02:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:02:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:02:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:02:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2022-02-24 03:02:55,851 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:02:55,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743744806] [2022-02-24 03:02:55,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1743744806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:02:55,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:02:55,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-24 03:02:55,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696148175] [2022-02-24 03:02:55,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:02:55,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-24 03:02:55,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:02:55,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-24 03:02:55,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1027, Unknown=0, NotChecked=0, Total=1122 [2022-02-24 03:02:55,853 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 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 03:02:59,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:02:59,477 INFO L93 Difference]: Finished difference Result 284 states and 348 transitions. [2022-02-24 03:02:59,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-24 03:02:59,479 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 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 253 [2022-02-24 03:02:59,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:02:59,481 INFO L225 Difference]: With dead ends: 284 [2022-02-24 03:02:59,481 INFO L226 Difference]: Without dead ends: 273 [2022-02-24 03:02:59,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=3881, Unknown=0, NotChecked=0, Total=4160 [2022-02-24 03:02:59,482 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 283 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 8863 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 9193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 8863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:02:59,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 218 Invalid, 9193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 8863 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-24 03:02:59,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-02-24 03:02:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 146. [2022-02-24 03:02:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 108 states have internal predecessors, (110), 34 states have call successors, (34), 4 states have call predecessors, (34), 3 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-24 03:02:59,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2022-02-24 03:02:59,537 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 253 [2022-02-24 03:02:59,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:02:59,538 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2022-02-24 03:02:59,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 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 03:02:59,538 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2022-02-24 03:02:59,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-02-24 03:02:59,539 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:02:59,539 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:02:59,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 03:02:59,539 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:02:59,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:02:59,540 INFO L85 PathProgramCache]: Analyzing trace with hash 777170958, now seen corresponding path program 31 times [2022-02-24 03:02:59,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:02:59,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164867004] [2022-02-24 03:02:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:02:59,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:02:59,544 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:02:59,544 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:02:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-02-24 03:03:00,100 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:00,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164867004] [2022-02-24 03:03:00,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1164867004] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:00,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:00,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-02-24 03:03:00,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767835097] [2022-02-24 03:03:00,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:00,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-02-24 03:03:00,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:00,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-02-24 03:03:00,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1092, Unknown=0, NotChecked=0, Total=1190 [2022-02-24 03:03:00,103 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 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 03:03:04,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:04,096 INFO L93 Difference]: Finished difference Result 292 states and 358 transitions. [2022-02-24 03:03:04,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-24 03:03:04,097 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 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 261 [2022-02-24 03:03:04,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:04,101 INFO L225 Difference]: With dead ends: 292 [2022-02-24 03:03:04,101 INFO L226 Difference]: Without dead ends: 281 [2022-02-24 03:03:04,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=288, Invalid=4134, Unknown=0, NotChecked=0, Total=4422 [2022-02-24 03:03:04,103 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 327 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 8157 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 8533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 8157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:04,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 136 Invalid, 8533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 8157 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-24 03:03:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-02-24 03:03:04,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 150. [2022-02-24 03:03:04,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.018018018018018) internal successors, (113), 111 states have internal predecessors, (113), 35 states have call successors, (35), 4 states have call predecessors, (35), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-24 03:03:04,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2022-02-24 03:03:04,160 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 261 [2022-02-24 03:03:04,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:04,160 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2022-02-24 03:03:04,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 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 03:03:04,160 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2022-02-24 03:03:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-02-24 03:03:04,161 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:04,161 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:04,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 03:03:04,161 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:04,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:04,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1150354025, now seen corresponding path program 32 times [2022-02-24 03:03:04,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:04,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176783874] [2022-02-24 03:03:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:04,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:04,165 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:04,165 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:04,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2022-02-24 03:03:04,835 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:04,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176783874] [2022-02-24 03:03:04,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1176783874] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:04,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:04,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-24 03:03:04,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684610987] [2022-02-24 03:03:04,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:04,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-24 03:03:04,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:04,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-24 03:03:04,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1159, Unknown=0, NotChecked=0, Total=1260 [2022-02-24 03:03:04,836 INFO L87 Difference]: Start difference. First operand 150 states and 182 transitions. Second operand has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 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 03:03:09,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:09,298 INFO L93 Difference]: Finished difference Result 300 states and 368 transitions. [2022-02-24 03:03:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-24 03:03:09,299 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 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 269 [2022-02-24 03:03:09,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:09,300 INFO L225 Difference]: With dead ends: 300 [2022-02-24 03:03:09,300 INFO L226 Difference]: Without dead ends: 289 [2022-02-24 03:03:09,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=297, Invalid=4395, Unknown=0, NotChecked=0, Total=4692 [2022-02-24 03:03:09,302 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 299 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10099 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 10449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 10099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:09,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 234 Invalid, 10449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 10099 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-24 03:03:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-02-24 03:03:09,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 154. [2022-02-24 03:03:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 114 states have (on average 1.0175438596491229) internal successors, (116), 114 states have internal predecessors, (116), 36 states have call successors, (36), 4 states have call predecessors, (36), 3 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-24 03:03:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 187 transitions. [2022-02-24 03:03:09,343 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 187 transitions. Word has length 269 [2022-02-24 03:03:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:09,343 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 187 transitions. [2022-02-24 03:03:09,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 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 03:03:09,343 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 187 transitions. [2022-02-24 03:03:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-24 03:03:09,344 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:09,344 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:09,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 03:03:09,344 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:09,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:09,344 INFO L85 PathProgramCache]: Analyzing trace with hash -592393788, now seen corresponding path program 33 times [2022-02-24 03:03:09,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:09,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640868982] [2022-02-24 03:03:09,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:09,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:09,348 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:09,348 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:03:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:10,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2022-02-24 03:03:10,103 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:10,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640868982] [2022-02-24 03:03:10,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [640868982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:10,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:10,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-02-24 03:03:10,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636671114] [2022-02-24 03:03:10,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:10,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-24 03:03:10,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:10,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-24 03:03:10,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1228, Unknown=0, NotChecked=0, Total=1332 [2022-02-24 03:03:10,105 INFO L87 Difference]: Start difference. First operand 154 states and 187 transitions. Second operand has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 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 03:03:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:14,805 INFO L93 Difference]: Finished difference Result 308 states and 378 transitions. [2022-02-24 03:03:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-24 03:03:14,805 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 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 277 [2022-02-24 03:03:14,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:14,810 INFO L225 Difference]: With dead ends: 308 [2022-02-24 03:03:14,810 INFO L226 Difference]: Without dead ends: 297 [2022-02-24 03:03:14,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=306, Invalid=4664, Unknown=0, NotChecked=0, Total=4970 [2022-02-24 03:03:14,813 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 305 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 10824 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 11182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 10824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:14,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 247 Invalid, 11182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 10824 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-24 03:03:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-02-24 03:03:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 158. [2022-02-24 03:03:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 117 states have (on average 1.017094017094017) internal successors, (119), 117 states have internal predecessors, (119), 37 states have call successors, (37), 4 states have call predecessors, (37), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-24 03:03:14,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 192 transitions. [2022-02-24 03:03:14,903 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 192 transitions. Word has length 277 [2022-02-24 03:03:14,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:14,903 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 192 transitions. [2022-02-24 03:03:14,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 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 03:03:14,904 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 192 transitions. [2022-02-24 03:03:14,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-02-24 03:03:14,905 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:14,905 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:14,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 03:03:14,905 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:14,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:14,906 INFO L85 PathProgramCache]: Analyzing trace with hash -865270241, now seen corresponding path program 34 times [2022-02-24 03:03:14,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:14,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097072781] [2022-02-24 03:03:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:14,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:14,910 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:14,910 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:03:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:03:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2022-02-24 03:03:15,655 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:15,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097072781] [2022-02-24 03:03:15,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2097072781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:15,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:15,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-24 03:03:15,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392285361] [2022-02-24 03:03:15,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:15,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-24 03:03:15,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:15,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-24 03:03:15,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2022-02-24 03:03:15,656 INFO L87 Difference]: Start difference. First operand 158 states and 192 transitions. Second operand has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 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 03:03:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:20,168 INFO L93 Difference]: Finished difference Result 316 states and 388 transitions. [2022-02-24 03:03:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-24 03:03:20,168 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 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 285 [2022-02-24 03:03:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:20,169 INFO L225 Difference]: With dead ends: 316 [2022-02-24 03:03:20,169 INFO L226 Difference]: Without dead ends: 305 [2022-02-24 03:03:20,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=315, Invalid=4941, Unknown=0, NotChecked=0, Total=5256 [2022-02-24 03:03:20,170 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 353 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 9914 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 10322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 9914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:20,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 155 Invalid, 10322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 9914 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-24 03:03:20,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-24 03:03:20,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 162. [2022-02-24 03:03:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 120 states have (on average 1.0166666666666666) internal successors, (122), 120 states have internal predecessors, (122), 38 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-24 03:03:20,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 197 transitions. [2022-02-24 03:03:20,215 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 197 transitions. Word has length 285 [2022-02-24 03:03:20,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:20,215 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 197 transitions. [2022-02-24 03:03:20,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 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 03:03:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 197 transitions. [2022-02-24 03:03:20,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-02-24 03:03:20,216 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:20,216 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:20,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 03:03:20,217 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:20,217 INFO L85 PathProgramCache]: Analyzing trace with hash -25118854, now seen corresponding path program 35 times [2022-02-24 03:03:20,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:20,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904573485] [2022-02-24 03:03:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:20,220 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:20,220 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:03:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:03:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:03:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2022-02-24 03:03:21,000 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:21,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904573485] [2022-02-24 03:03:21,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [904573485] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:21,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:21,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-02-24 03:03:21,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969359818] [2022-02-24 03:03:21,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:21,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-24 03:03:21,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-24 03:03:21,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2022-02-24 03:03:21,002 INFO L87 Difference]: Start difference. First operand 162 states and 197 transitions. Second operand has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 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 03:03:25,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:25,796 INFO L93 Difference]: Finished difference Result 324 states and 398 transitions. [2022-02-24 03:03:25,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-24 03:03:25,797 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 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 293 [2022-02-24 03:03:25,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:25,798 INFO L225 Difference]: With dead ends: 324 [2022-02-24 03:03:25,798 INFO L226 Difference]: Without dead ends: 313 [2022-02-24 03:03:25,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=324, Invalid=5226, Unknown=0, NotChecked=0, Total=5550 [2022-02-24 03:03:25,800 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 331 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 11779 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 12167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 11779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:25,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 238 Invalid, 12167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 11779 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-24 03:03:25,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-02-24 03:03:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 166. [2022-02-24 03:03:25,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 123 states have (on average 1.016260162601626) internal successors, (125), 123 states have internal predecessors, (125), 39 states have call successors, (39), 4 states have call predecessors, (39), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-24 03:03:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 202 transitions. [2022-02-24 03:03:25,874 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 202 transitions. Word has length 293 [2022-02-24 03:03:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:25,874 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 202 transitions. [2022-02-24 03:03:25,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 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 03:03:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 202 transitions. [2022-02-24 03:03:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-24 03:03:25,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:25,876 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:25,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 03:03:25,877 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1923538389, now seen corresponding path program 36 times [2022-02-24 03:03:25,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:25,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503710891] [2022-02-24 03:03:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:25,882 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:25,882 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:03:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:03:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:03:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:03:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2022-02-24 03:03:26,646 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:26,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503710891] [2022-02-24 03:03:26,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1503710891] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:26,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:26,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-24 03:03:26,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14986254] [2022-02-24 03:03:26,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:26,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-24 03:03:26,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:26,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-24 03:03:26,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1447, Unknown=0, NotChecked=0, Total=1560 [2022-02-24 03:03:26,650 INFO L87 Difference]: Start difference. First operand 166 states and 202 transitions. Second operand has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 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 03:03:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:32,021 INFO L93 Difference]: Finished difference Result 332 states and 408 transitions. [2022-02-24 03:03:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-24 03:03:32,022 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 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 301 [2022-02-24 03:03:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:32,023 INFO L225 Difference]: With dead ends: 332 [2022-02-24 03:03:32,023 INFO L226 Difference]: Without dead ends: 321 [2022-02-24 03:03:32,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=333, Invalid=5519, Unknown=0, NotChecked=0, Total=5852 [2022-02-24 03:03:32,025 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 373 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 11068 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 11500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 11068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:32,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 161 Invalid, 11500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 11068 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 03:03:32,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-02-24 03:03:32,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 170. [2022-02-24 03:03:32,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.0158730158730158) internal successors, (128), 126 states have internal predecessors, (128), 40 states have call successors, (40), 4 states have call predecessors, (40), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-24 03:03:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 207 transitions. [2022-02-24 03:03:32,106 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 207 transitions. Word has length 301 [2022-02-24 03:03:32,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:32,107 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 207 transitions. [2022-02-24 03:03:32,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 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 03:03:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 207 transitions. [2022-02-24 03:03:32,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-02-24 03:03:32,108 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:32,108 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:32,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 03:03:32,109 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:32,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1033533744, now seen corresponding path program 37 times [2022-02-24 03:03:32,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:32,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141117086] [2022-02-24 03:03:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:32,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:32,113 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:32,114 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:03:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:03:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:03:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:03:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:03:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:32,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2022-02-24 03:03:32,890 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:32,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141117086] [2022-02-24 03:03:32,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2141117086] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:32,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:32,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-02-24 03:03:32,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902129504] [2022-02-24 03:03:32,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:32,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-02-24 03:03:32,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:32,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-02-24 03:03:32,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1524, Unknown=0, NotChecked=0, Total=1640 [2022-02-24 03:03:32,894 INFO L87 Difference]: Start difference. First operand 170 states and 207 transitions. Second operand has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 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 03:03:38,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:38,291 INFO L93 Difference]: Finished difference Result 340 states and 418 transitions. [2022-02-24 03:03:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-24 03:03:38,291 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 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 309 [2022-02-24 03:03:38,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:38,293 INFO L225 Difference]: With dead ends: 340 [2022-02-24 03:03:38,293 INFO L226 Difference]: Without dead ends: 329 [2022-02-24 03:03:38,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=342, Invalid=5820, Unknown=0, NotChecked=0, Total=6162 [2022-02-24 03:03:38,294 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 331 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 13879 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 14271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 13879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:38,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 294 Invalid, 14271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 13879 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-24 03:03:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-02-24 03:03:38,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 174. [2022-02-24 03:03:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 129 states have (on average 1.0155038759689923) internal successors, (131), 129 states have internal predecessors, (131), 41 states have call successors, (41), 4 states have call predecessors, (41), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-24 03:03:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2022-02-24 03:03:38,359 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 309 [2022-02-24 03:03:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:38,360 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2022-02-24 03:03:38,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 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 03:03:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2022-02-24 03:03:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-02-24 03:03:38,361 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:38,361 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:38,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 03:03:38,361 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:38,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:38,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011701, now seen corresponding path program 38 times [2022-02-24 03:03:38,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:38,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555348246] [2022-02-24 03:03:38,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:38,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:38,365 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:38,365 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:03:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:03:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:03:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:03:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:03:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:03:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:39,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2022-02-24 03:03:39,296 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:39,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555348246] [2022-02-24 03:03:39,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1555348246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:39,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:39,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-24 03:03:39,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12756484] [2022-02-24 03:03:39,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:39,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-24 03:03:39,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:39,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-24 03:03:39,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2022-02-24 03:03:39,298 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 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 03:03:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:45,603 INFO L93 Difference]: Finished difference Result 348 states and 428 transitions. [2022-02-24 03:03:45,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-24 03:03:45,603 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 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 317 [2022-02-24 03:03:45,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:45,605 INFO L225 Difference]: With dead ends: 348 [2022-02-24 03:03:45,605 INFO L226 Difference]: Without dead ends: 337 [2022-02-24 03:03:45,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=351, Invalid=6129, Unknown=0, NotChecked=0, Total=6480 [2022-02-24 03:03:45,610 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 353 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 14026 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 14442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 14026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:45,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 267 Invalid, 14442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 14026 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-02-24 03:03:45,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-02-24 03:03:45,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 178. [2022-02-24 03:03:45,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 132 states have (on average 1.0151515151515151) internal successors, (134), 132 states have internal predecessors, (134), 42 states have call successors, (42), 4 states have call predecessors, (42), 3 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-24 03:03:45,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2022-02-24 03:03:45,697 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 317 [2022-02-24 03:03:45,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:45,698 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2022-02-24 03:03:45,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 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 03:03:45,698 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2022-02-24 03:03:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-02-24 03:03:45,699 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:45,700 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:45,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 03:03:45,700 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:45,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1814688026, now seen corresponding path program 39 times [2022-02-24 03:03:45,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:45,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475816848] [2022-02-24 03:03:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:45,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:45,705 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:45,705 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:03:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:03:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:03:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:03:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:03:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:03:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:03:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2022-02-24 03:03:46,719 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:46,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475816848] [2022-02-24 03:03:46,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1475816848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:46,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:46,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-02-24 03:03:46,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924259052] [2022-02-24 03:03:46,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:46,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-24 03:03:46,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:46,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-24 03:03:46,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1684, Unknown=0, NotChecked=0, Total=1806 [2022-02-24 03:03:46,721 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 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 03:03:52,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:03:52,930 INFO L93 Difference]: Finished difference Result 356 states and 438 transitions. [2022-02-24 03:03:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-24 03:03:52,931 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 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 325 [2022-02-24 03:03:52,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:03:52,932 INFO L225 Difference]: With dead ends: 356 [2022-02-24 03:03:52,932 INFO L226 Difference]: Without dead ends: 345 [2022-02-24 03:03:52,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=360, Invalid=6446, Unknown=0, NotChecked=0, Total=6806 [2022-02-24 03:03:52,933 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 375 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 14165 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 14605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 14165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:03:52,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 240 Invalid, 14605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 14165 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-24 03:03:52,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-02-24 03:03:52,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 182. [2022-02-24 03:03:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 135 states have (on average 1.0148148148148148) internal successors, (137), 135 states have internal predecessors, (137), 43 states have call successors, (43), 4 states have call predecessors, (43), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-24 03:03:52,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 222 transitions. [2022-02-24 03:03:52,991 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 222 transitions. Word has length 325 [2022-02-24 03:03:52,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:03:52,992 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 222 transitions. [2022-02-24 03:03:52,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 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 03:03:52,992 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 222 transitions. [2022-02-24 03:03:52,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-02-24 03:03:52,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:03:52,993 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:03:52,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 03:03:52,993 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:03:52,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:03:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1315698367, now seen corresponding path program 40 times [2022-02-24 03:03:52,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:03:52,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812838695] [2022-02-24 03:03:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:03:52,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:03:52,997 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:03:52,997 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:03:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:03:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:03:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:03:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:03:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:03:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:03:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:03:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:03:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:03:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:03:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:03:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:03:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:03:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:03:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:03:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:03:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:03:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:03:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:03:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:03:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:03:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:03:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:03:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:03:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:03:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:03:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:03:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:03:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:03:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:03:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:03:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:03:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:03:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:03:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:03:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:03:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:03:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:03:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:03:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:03:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:03:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:03:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2022-02-24 03:03:53,831 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:03:53,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812838695] [2022-02-24 03:03:53,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [812838695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:03:53,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:03:53,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-24 03:03:53,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659109773] [2022-02-24 03:03:53,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:03:53,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-24 03:03:53,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:03:53,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-24 03:03:53,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1767, Unknown=0, NotChecked=0, Total=1892 [2022-02-24 03:03:53,833 INFO L87 Difference]: Start difference. First operand 182 states and 222 transitions. Second operand has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 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 03:04:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:04:00,809 INFO L93 Difference]: Finished difference Result 364 states and 448 transitions. [2022-02-24 03:04:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-24 03:04:00,810 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 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 333 [2022-02-24 03:04:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:04:00,813 INFO L225 Difference]: With dead ends: 364 [2022-02-24 03:04:00,813 INFO L226 Difference]: Without dead ends: 353 [2022-02-24 03:04:00,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=369, Invalid=6771, Unknown=0, NotChecked=0, Total=7140 [2022-02-24 03:04:00,816 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 373 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 15388 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 15828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 15388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:04:00,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 273 Invalid, 15828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 15388 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 03:04:00,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-02-24 03:04:00,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 186. [2022-02-24 03:04:00,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 138 states have (on average 1.0144927536231885) internal successors, (140), 138 states have internal predecessors, (140), 44 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-24 03:04:00,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 227 transitions. [2022-02-24 03:04:00,901 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 227 transitions. Word has length 333 [2022-02-24 03:04:00,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:04:00,901 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 227 transitions. [2022-02-24 03:04:00,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 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 03:04:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 227 transitions. [2022-02-24 03:04:00,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-02-24 03:04:00,924 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:04:00,924 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:04:00,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 03:04:00,924 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:04:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:04:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1259042972, now seen corresponding path program 41 times [2022-02-24 03:04:00,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:04:00,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163545562] [2022-02-24 03:04:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:04:00,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:04:00,933 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:04:00,933 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:04:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:04:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:04:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:04:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:04:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:04:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:04:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:04:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:04:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:04:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:04:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:04:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:04:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:04:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:04:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:04:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:04:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:04:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:04:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:04:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:04:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:04:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:04:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:04:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:04:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:04:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:04:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:04:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:04:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:04:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:04:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:04:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:04:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:04:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:04:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:04:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:04:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:04:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:04:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:04:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:04:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:04:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:04:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2022-02-24 03:04:02,105 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:04:02,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163545562] [2022-02-24 03:04:02,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [163545562] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:04:02,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:04:02,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-02-24 03:04:02,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369318261] [2022-02-24 03:04:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:04:02,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-02-24 03:04:02,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:04:02,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-02-24 03:04:02,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1852, Unknown=0, NotChecked=0, Total=1980 [2022-02-24 03:04:02,107 INFO L87 Difference]: Start difference. First operand 186 states and 227 transitions. Second operand has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 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 03:04:08,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:04:08,124 INFO L93 Difference]: Finished difference Result 372 states and 458 transitions. [2022-02-24 03:04:08,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-24 03:04:08,125 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 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 341 [2022-02-24 03:04:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:04:08,126 INFO L225 Difference]: With dead ends: 372 [2022-02-24 03:04:08,126 INFO L226 Difference]: Without dead ends: 361 [2022-02-24 03:04:08,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=378, Invalid=7104, Unknown=0, NotChecked=0, Total=7482 [2022-02-24 03:04:08,127 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 419 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14419 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 14907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 14419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:04:08,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 186 Invalid, 14907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 14419 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-24 03:04:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-02-24 03:04:08,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 190. [2022-02-24 03:04:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 141 states have internal predecessors, (143), 45 states have call successors, (45), 4 states have call predecessors, (45), 3 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-24 03:04:08,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2022-02-24 03:04:08,189 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 341 [2022-02-24 03:04:08,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:04:08,190 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2022-02-24 03:04:08,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 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 03:04:08,190 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2022-02-24 03:04:08,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-02-24 03:04:08,191 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:04:08,191 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:04:08,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 03:04:08,192 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:04:08,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:04:08,192 INFO L85 PathProgramCache]: Analyzing trace with hash -570991369, now seen corresponding path program 42 times [2022-02-24 03:04:08,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:04:08,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486336070] [2022-02-24 03:04:08,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:04:08,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:04:08,202 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:04:08,202 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:04:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:04:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:04:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:04:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:04:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:04:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:04:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:04:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:04:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:04:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:04:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:04:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:04:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:04:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:04:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:04:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:04:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:04:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:04:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:04:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:04:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:04:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:04:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:04:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:04:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:04:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:04:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:04:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:04:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:04:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:04:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:04:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:04:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:04:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:04:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:04:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:08,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:04:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:04:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:04:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:09,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:04:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:04:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:09,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:04:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:04:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:09,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:04:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:09,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-02-24 03:04:09,030 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:04:09,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486336070] [2022-02-24 03:04:09,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1486336070] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:04:09,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:04:09,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-24 03:04:09,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175024861] [2022-02-24 03:04:09,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:04:09,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-24 03:04:09,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:04:09,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-24 03:04:09,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1939, Unknown=0, NotChecked=0, Total=2070 [2022-02-24 03:04:09,033 INFO L87 Difference]: Start difference. First operand 190 states and 232 transitions. Second operand has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 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 03:04:16,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:04:16,219 INFO L93 Difference]: Finished difference Result 380 states and 468 transitions. [2022-02-24 03:04:16,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-24 03:04:16,220 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 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 349 [2022-02-24 03:04:16,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:04:16,235 INFO L225 Difference]: With dead ends: 380 [2022-02-24 03:04:16,236 INFO L226 Difference]: Without dead ends: 369 [2022-02-24 03:04:16,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=387, Invalid=7445, Unknown=0, NotChecked=0, Total=7832 [2022-02-24 03:04:16,260 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 403 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 16339 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 16813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 16339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:04:16,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 254 Invalid, 16813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 16339 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 03:04:16,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-02-24 03:04:16,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 194. [2022-02-24 03:04:16,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 144 states have (on average 1.0138888888888888) internal successors, (146), 144 states have internal predecessors, (146), 46 states have call successors, (46), 4 states have call predecessors, (46), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-24 03:04:16,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 237 transitions. [2022-02-24 03:04:16,363 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 237 transitions. Word has length 349 [2022-02-24 03:04:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:04:16,364 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 237 transitions. [2022-02-24 03:04:16,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 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 03:04:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 237 transitions. [2022-02-24 03:04:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-02-24 03:04:16,366 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:04:16,366 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:04:16,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 03:04:16,366 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:04:16,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:04:16,367 INFO L85 PathProgramCache]: Analyzing trace with hash -49105326, now seen corresponding path program 43 times [2022-02-24 03:04:16,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:04:16,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998967475] [2022-02-24 03:04:16,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:04:16,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:04:16,372 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:04:16,372 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:04:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:04:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:04:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:04:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:04:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:04:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:04:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:04:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:04:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:04:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:04:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:04:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:04:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:04:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:04:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:04:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:04:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:04:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:04:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:04:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:04:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:04:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:04:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:04:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:04:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:04:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:04:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:04:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:04:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:04:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:04:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:04:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:04:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:04:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:04:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:04:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:04:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:04:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:04:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:04:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:04:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:04:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:04:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:04:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:04:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:17,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2022-02-24 03:04:17,574 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:04:17,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998967475] [2022-02-24 03:04:17,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1998967475] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:04:17,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:04:17,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-02-24 03:04:17,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499337003] [2022-02-24 03:04:17,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:04:17,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-02-24 03:04:17,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:04:17,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-02-24 03:04:17,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=2028, Unknown=0, NotChecked=0, Total=2162 [2022-02-24 03:04:17,575 INFO L87 Difference]: Start difference. First operand 194 states and 237 transitions. Second operand has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 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 03:04:25,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:04:25,189 INFO L93 Difference]: Finished difference Result 388 states and 478 transitions. [2022-02-24 03:04:25,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-24 03:04:25,189 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 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 357 [2022-02-24 03:04:25,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:04:25,190 INFO L225 Difference]: With dead ends: 388 [2022-02-24 03:04:25,191 INFO L226 Difference]: Without dead ends: 377 [2022-02-24 03:04:25,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=396, Invalid=7794, Unknown=0, NotChecked=0, Total=8190 [2022-02-24 03:04:25,191 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 417 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 16872 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 17362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 16872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:04:25,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 247 Invalid, 17362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 16872 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 03:04:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-02-24 03:04:25,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 198. [2022-02-24 03:04:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 147 states have (on average 1.0136054421768708) internal successors, (149), 147 states have internal predecessors, (149), 47 states have call successors, (47), 4 states have call predecessors, (47), 3 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-24 03:04:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 242 transitions. [2022-02-24 03:04:25,273 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 242 transitions. Word has length 357 [2022-02-24 03:04:25,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:04:25,273 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 242 transitions. [2022-02-24 03:04:25,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 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 03:04:25,273 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 242 transitions. [2022-02-24 03:04:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-02-24 03:04:25,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:04:25,275 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:04:25,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 03:04:25,275 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:04:25,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:04:25,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1343784109, now seen corresponding path program 44 times [2022-02-24 03:04:25,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:04:25,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208538183] [2022-02-24 03:04:25,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:04:25,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:04:25,288 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:04:25,288 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:04:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:04:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:04:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:04:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:04:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:04:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:04:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:04:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:04:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:04:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:04:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:04:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:04:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:04:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:04:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:04:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:04:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:04:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:04:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:04:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:04:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:04:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:04:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:04:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:04:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:04:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:04:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:04:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:04:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:04:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:04:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:04:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:04:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:04:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:04:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:04:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:04:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:04:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:04:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:04:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:04:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:04:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:04:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:04:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:04:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:04:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2022-02-24 03:04:26,232 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:04:26,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208538183] [2022-02-24 03:04:26,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1208538183] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:04:26,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:04:26,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-24 03:04:26,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471203434] [2022-02-24 03:04:26,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:04:26,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-24 03:04:26,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:04:26,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-24 03:04:26,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2119, Unknown=0, NotChecked=0, Total=2256 [2022-02-24 03:04:26,234 INFO L87 Difference]: Start difference. First operand 198 states and 242 transitions. Second operand has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 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 03:04:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:04:34,188 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2022-02-24 03:04:34,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-24 03:04:34,189 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 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 365 [2022-02-24 03:04:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:04:34,191 INFO L225 Difference]: With dead ends: 396 [2022-02-24 03:04:34,191 INFO L226 Difference]: Without dead ends: 385 [2022-02-24 03:04:34,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=405, Invalid=8151, Unknown=0, NotChecked=0, Total=8556 [2022-02-24 03:04:34,192 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 425 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 17710 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 18210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 17710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:04:34,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 255 Invalid, 18210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 17710 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 03:04:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-02-24 03:04:34,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 202. [2022-02-24 03:04:34,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 150 states have (on average 1.0133333333333334) internal successors, (152), 150 states have internal predecessors, (152), 48 states have call successors, (48), 4 states have call predecessors, (48), 3 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-24 03:04:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2022-02-24 03:04:34,291 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 365 [2022-02-24 03:04:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:04:34,291 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2022-02-24 03:04:34,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 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 03:04:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2022-02-24 03:04:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-02-24 03:04:34,293 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:04:34,293 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:04:34,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 03:04:34,293 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:04:34,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:04:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1815885816, now seen corresponding path program 45 times [2022-02-24 03:04:34,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:04:34,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936507448] [2022-02-24 03:04:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:04:34,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:04:34,298 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:04:34,298 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:04:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:04:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:04:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:04:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:04:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:04:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:04:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:04:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:04:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:04:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:04:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:04:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:04:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:04:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:04:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:04:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:04:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:04:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:04:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:04:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:04:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:04:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:04:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:04:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:04:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:04:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:04:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:04:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:04:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:04:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:04:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:04:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:04:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:04:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:04:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:04:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:04:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:04:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:04:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:04:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:04:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:04:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:04:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:04:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:04:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:04:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:04:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2022-02-24 03:04:35,193 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:04:35,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936507448] [2022-02-24 03:04:35,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1936507448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:04:35,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:04:35,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2022-02-24 03:04:35,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604549948] [2022-02-24 03:04:35,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:04:35,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-02-24 03:04:35,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:04:35,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-02-24 03:04:35,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=2212, Unknown=0, NotChecked=0, Total=2352 [2022-02-24 03:04:35,194 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 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 03:04:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:04:43,710 INFO L93 Difference]: Finished difference Result 404 states and 498 transitions. [2022-02-24 03:04:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-24 03:04:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 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 373 [2022-02-24 03:04:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:04:43,713 INFO L225 Difference]: With dead ends: 404 [2022-02-24 03:04:43,713 INFO L226 Difference]: Without dead ends: 393 [2022-02-24 03:04:43,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=414, Invalid=8516, Unknown=0, NotChecked=0, Total=8930 [2022-02-24 03:04:43,715 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 401 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 20184 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 20662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 20184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:04:43,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 343 Invalid, 20662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 20184 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 03:04:43,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-02-24 03:04:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 206. [2022-02-24 03:04:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 153 states have (on average 1.0130718954248366) internal successors, (155), 153 states have internal predecessors, (155), 49 states have call successors, (49), 4 states have call predecessors, (49), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-24 03:04:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 252 transitions. [2022-02-24 03:04:43,829 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 252 transitions. Word has length 373 [2022-02-24 03:04:43,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:04:43,829 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 252 transitions. [2022-02-24 03:04:43,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 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 03:04:43,829 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 252 transitions. [2022-02-24 03:04:43,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-02-24 03:04:43,830 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:04:43,830 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:04:43,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 03:04:43,831 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:04:43,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:04:43,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1714454429, now seen corresponding path program 46 times [2022-02-24 03:04:43,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:04:43,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616316206] [2022-02-24 03:04:43,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:04:43,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:04:43,835 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:04:43,836 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:04:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:04:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:04:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:04:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:04:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:04:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:04:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:04:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:04:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:04:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:04:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:04:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:04:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:04:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:04:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:04:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:04:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:04:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:04:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:04:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:04:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:44,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:04:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:04:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:04:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:04:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:04:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:04:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:04:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:04:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:04:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:04:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:04:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:04:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:04:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:04:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:04:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:04:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:04:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:04:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:04:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:04:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:04:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:04:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:04:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:04:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:04:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:04:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:04:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2022-02-24 03:04:45,072 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:04:45,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616316206] [2022-02-24 03:04:45,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [616316206] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:04:45,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:04:45,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-24 03:04:45,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463572612] [2022-02-24 03:04:45,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:04:45,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-24 03:04:45,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:04:45,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-24 03:04:45,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=2307, Unknown=0, NotChecked=0, Total=2450 [2022-02-24 03:04:45,074 INFO L87 Difference]: Start difference. First operand 206 states and 252 transitions. Second operand has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 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 03:04:55,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:04:55,325 INFO L93 Difference]: Finished difference Result 412 states and 508 transitions. [2022-02-24 03:04:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-24 03:04:55,326 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 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 381 [2022-02-24 03:04:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:04:55,327 INFO L225 Difference]: With dead ends: 412 [2022-02-24 03:04:55,327 INFO L226 Difference]: Without dead ends: 401 [2022-02-24 03:04:55,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=423, Invalid=8889, Unknown=0, NotChecked=0, Total=9312 [2022-02-24 03:04:55,330 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 399 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 21609 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 22087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 21609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:04:55,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 376 Invalid, 22087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 21609 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-02-24 03:04:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-02-24 03:04:55,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 210. [2022-02-24 03:04:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 156 states have (on average 1.0128205128205128) internal successors, (158), 156 states have internal predecessors, (158), 50 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-24 03:04:55,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 257 transitions. [2022-02-24 03:04:55,415 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 257 transitions. Word has length 381 [2022-02-24 03:04:55,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:04:55,415 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 257 transitions. [2022-02-24 03:04:55,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 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 03:04:55,415 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 257 transitions. [2022-02-24 03:04:55,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-02-24 03:04:55,416 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:04:55,416 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:04:55,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 03:04:55,417 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:04:55,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:04:55,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1224125886, now seen corresponding path program 47 times [2022-02-24 03:04:55,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:04:55,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424174234] [2022-02-24 03:04:55,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:04:55,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:04:55,421 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:04:55,421 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:04:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:04:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:04:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:04:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:04:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:04:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:04:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:04:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:04:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:04:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:04:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:04:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:04:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:04:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:04:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:04:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:04:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:04:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:04:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:04:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:04:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:04:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:04:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:04:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:04:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:04:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:04:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:04:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:04:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:04:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:04:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:04:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:04:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:04:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:04:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:04:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:04:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:04:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:04:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:04:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:04:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:04:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:04:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:04:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:04:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:04:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:04:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:04:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:04:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:04:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2022-02-24 03:04:56,519 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:04:56,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424174234] [2022-02-24 03:04:56,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [424174234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:04:56,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:04:56,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2022-02-24 03:04:56,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462247117] [2022-02-24 03:04:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:04:56,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-24 03:04:56,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:04:56,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-24 03:04:56,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2404, Unknown=0, NotChecked=0, Total=2550 [2022-02-24 03:04:56,522 INFO L87 Difference]: Start difference. First operand 210 states and 257 transitions. Second operand has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 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 03:05:05,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:05:05,349 INFO L93 Difference]: Finished difference Result 420 states and 518 transitions. [2022-02-24 03:05:05,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-24 03:05:05,349 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 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 389 [2022-02-24 03:05:05,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:05:05,357 INFO L225 Difference]: With dead ends: 420 [2022-02-24 03:05:05,357 INFO L226 Difference]: Without dead ends: 409 [2022-02-24 03:05:05,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=432, Invalid=9270, Unknown=0, NotChecked=0, Total=9702 [2022-02-24 03:05:05,358 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 441 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 20764 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 21286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 20764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:05:05,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 299 Invalid, 21286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 20764 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 03:05:05,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-02-24 03:05:05,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 214. [2022-02-24 03:05:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 159 states have (on average 1.0125786163522013) internal successors, (161), 159 states have internal predecessors, (161), 51 states have call successors, (51), 4 states have call predecessors, (51), 3 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-24 03:05:05,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 262 transitions. [2022-02-24 03:05:05,452 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 262 transitions. Word has length 389 [2022-02-24 03:05:05,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:05:05,452 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 262 transitions. [2022-02-24 03:05:05,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 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 03:05:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 262 transitions. [2022-02-24 03:05:05,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-02-24 03:05:05,454 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:05:05,454 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:05:05,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 03:05:05,454 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:05:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:05:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1661710311, now seen corresponding path program 48 times [2022-02-24 03:05:05,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:05:05,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470611521] [2022-02-24 03:05:05,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:05:05,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:05:05,458 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:05:05,458 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:05:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:05:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:05:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:05:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:05:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:05:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:05:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:05:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:05:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:05:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:05:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:05:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:05:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:05:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:05:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:05:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:05:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:05:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:05:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:05:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:05:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:05:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:05:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:05:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:05:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:05:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:05:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:05:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:05:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:05:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:05:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:05:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:05:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:05:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:05:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:05:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:05:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:05:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:05:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:05:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:05:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:05:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:05:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:05:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:05:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:05:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:05:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:05:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:05:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:05:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2022-02-24 03:05:06,699 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:05:06,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470611521] [2022-02-24 03:05:06,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1470611521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:05:06,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:05:06,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-24 03:05:06,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209436449] [2022-02-24 03:05:06,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:05:06,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-24 03:05:06,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:05:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-24 03:05:06,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2503, Unknown=0, NotChecked=0, Total=2652 [2022-02-24 03:05:06,701 INFO L87 Difference]: Start difference. First operand 214 states and 262 transitions. Second operand has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 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 03:05:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:05:16,453 INFO L93 Difference]: Finished difference Result 428 states and 528 transitions. [2022-02-24 03:05:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-24 03:05:16,454 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 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 397 [2022-02-24 03:05:16,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:05:16,455 INFO L225 Difference]: With dead ends: 428 [2022-02-24 03:05:16,455 INFO L226 Difference]: Without dead ends: 417 [2022-02-24 03:05:16,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=441, Invalid=9659, Unknown=0, NotChecked=0, Total=10100 [2022-02-24 03:05:16,456 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 411 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 23723 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 24217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 23723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:05:16,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 402 Invalid, 24217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 23723 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 03:05:16,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-02-24 03:05:16,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 218. [2022-02-24 03:05:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 162 states have (on average 1.0123456790123457) internal successors, (164), 162 states have internal predecessors, (164), 52 states have call successors, (52), 4 states have call predecessors, (52), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-24 03:05:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 267 transitions. [2022-02-24 03:05:16,538 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 267 transitions. Word has length 397 [2022-02-24 03:05:16,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:05:16,539 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 267 transitions. [2022-02-24 03:05:16,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 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 03:05:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 267 transitions. [2022-02-24 03:05:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-02-24 03:05:16,540 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:05:16,540 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:05:16,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 03:05:16,542 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:05:16,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:05:16,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1501337740, now seen corresponding path program 49 times [2022-02-24 03:05:16,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:05:16,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169010586] [2022-02-24 03:05:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:05:16,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:05:16,552 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:05:16,552 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:05:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:05:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:05:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:05:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:05:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:05:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:05:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:05:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:05:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:05:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:05:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:05:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:05:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:05:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:05:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:05:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:05:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:05:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:05:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:05:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:05:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:05:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:05:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:05:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:05:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:05:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:05:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:05:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:05:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:05:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:05:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:05:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:05:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:05:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:05:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:05:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:05:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:05:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:05:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:05:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:05:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:05:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:05:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:05:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:05:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:05:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:05:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:05:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:05:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:05:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:05:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2022-02-24 03:05:17,850 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:05:17,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169010586] [2022-02-24 03:05:17,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1169010586] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:05:17,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:05:17,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2022-02-24 03:05:17,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548549582] [2022-02-24 03:05:17,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:05:17,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-24 03:05:17,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:05:17,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-24 03:05:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2604, Unknown=0, NotChecked=0, Total=2756 [2022-02-24 03:05:17,859 INFO L87 Difference]: Start difference. First operand 218 states and 267 transitions. Second operand has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 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 03:05:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:05:26,621 INFO L93 Difference]: Finished difference Result 436 states and 538 transitions. [2022-02-24 03:05:26,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-24 03:05:26,621 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 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 405 [2022-02-24 03:05:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:05:26,623 INFO L225 Difference]: With dead ends: 436 [2022-02-24 03:05:26,623 INFO L226 Difference]: Without dead ends: 425 [2022-02-24 03:05:26,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=450, Invalid=10056, Unknown=0, NotChecked=0, Total=10506 [2022-02-24 03:05:26,624 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 459 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 22527 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 23071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 22527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:05:26,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 310 Invalid, 23071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 22527 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-02-24 03:05:26,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-02-24 03:05:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 222. [2022-02-24 03:05:26,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 165 states have (on average 1.0121212121212122) internal successors, (167), 165 states have internal predecessors, (167), 53 states have call successors, (53), 4 states have call predecessors, (53), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-24 03:05:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 272 transitions. [2022-02-24 03:05:26,711 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 272 transitions. Word has length 405 [2022-02-24 03:05:26,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:05:26,712 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 272 transitions. [2022-02-24 03:05:26,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 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 03:05:26,712 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 272 transitions. [2022-02-24 03:05:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-02-24 03:05:26,713 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:05:26,713 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:05:26,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 03:05:26,713 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:05:26,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:05:26,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1956711473, now seen corresponding path program 50 times [2022-02-24 03:05:26,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:05:26,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181622833] [2022-02-24 03:05:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:05:26,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:05:26,718 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:05:26,718 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:05:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:05:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:05:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:05:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:05:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:05:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:05:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:05:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:05:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:05:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:05:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:05:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:05:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:05:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:05:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:05:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:05:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:05:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:05:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:05:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:05:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:05:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:05:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:05:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:05:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:05:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:05:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:05:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:05:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:05:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:05:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:05:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:05:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:05:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:05:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:05:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:05:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:05:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:05:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:05:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:05:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:05:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:05:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:05:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:05:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:05:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:05:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:05:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:05:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:05:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:05:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:05:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2022-02-24 03:05:27,708 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:05:27,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181622833] [2022-02-24 03:05:27,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1181622833] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:05:27,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:05:27,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-24 03:05:27,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667172170] [2022-02-24 03:05:27,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:05:27,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-24 03:05:27,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:05:27,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-24 03:05:27,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=2707, Unknown=0, NotChecked=0, Total=2862 [2022-02-24 03:05:27,710 INFO L87 Difference]: Start difference. First operand 222 states and 272 transitions. Second operand has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 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 03:05:37,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:05:37,541 INFO L93 Difference]: Finished difference Result 444 states and 548 transitions. [2022-02-24 03:05:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-24 03:05:37,542 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 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 413 [2022-02-24 03:05:37,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:05:37,544 INFO L225 Difference]: With dead ends: 444 [2022-02-24 03:05:37,544 INFO L226 Difference]: Without dead ends: 433 [2022-02-24 03:05:37,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=459, Invalid=10461, Unknown=0, NotChecked=0, Total=10920 [2022-02-24 03:05:37,546 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 509 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 21160 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 21756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 21160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 03:05:37,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 213 Invalid, 21756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 21160 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 03:05:37,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-02-24 03:05:37,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 226. [2022-02-24 03:05:37,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 168 states have (on average 1.0119047619047619) internal successors, (170), 168 states have internal predecessors, (170), 54 states have call successors, (54), 4 states have call predecessors, (54), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-24 03:05:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 277 transitions. [2022-02-24 03:05:37,658 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 277 transitions. Word has length 413 [2022-02-24 03:05:37,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:05:37,658 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 277 transitions. [2022-02-24 03:05:37,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 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 03:05:37,658 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 277 transitions. [2022-02-24 03:05:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-02-24 03:05:37,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:05:37,660 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:05:37,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 03:05:37,660 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:05:37,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:05:37,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2042497750, now seen corresponding path program 51 times [2022-02-24 03:05:37,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:05:37,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538915493] [2022-02-24 03:05:37,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:05:37,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:05:37,664 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:05:37,665 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:05:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:05:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:05:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:05:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:05:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:05:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:05:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:05:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:05:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:05:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:05:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:05:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:05:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:38,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:05:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:05:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:05:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:05:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:05:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:05:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:05:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:05:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:05:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:05:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:05:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:05:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:05:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:05:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:05:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:05:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:05:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:05:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:05:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:05:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:05:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:05:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:05:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:05:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:05:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:05:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:05:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:05:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:05:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:05:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:05:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:05:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:05:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:05:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:05:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:05:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:05:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:05:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:05:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:05:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2022-02-24 03:05:39,061 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:05:39,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538915493] [2022-02-24 03:05:39,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [538915493] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:05:39,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:05:39,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2022-02-24 03:05:39,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710755233] [2022-02-24 03:05:39,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:05:39,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-02-24 03:05:39,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:05:39,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-02-24 03:05:39,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=2812, Unknown=0, NotChecked=0, Total=2970 [2022-02-24 03:05:39,063 INFO L87 Difference]: Start difference. First operand 226 states and 277 transitions. Second operand has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 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 03:05:52,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:05:52,147 INFO L93 Difference]: Finished difference Result 452 states and 558 transitions. [2022-02-24 03:05:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-24 03:05:52,148 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 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 421 [2022-02-24 03:05:52,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:05:52,150 INFO L225 Difference]: With dead ends: 452 [2022-02-24 03:05:52,150 INFO L226 Difference]: Without dead ends: 441 [2022-02-24 03:05:52,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1327 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=468, Invalid=10874, Unknown=0, NotChecked=0, Total=11342 [2022-02-24 03:05:52,151 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 451 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 25831 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 26371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 25831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:05:52,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 386 Invalid, 26371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 25831 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-02-24 03:05:52,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-02-24 03:05:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 230. [2022-02-24 03:05:52,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 171 states have (on average 1.0116959064327486) internal successors, (173), 171 states have internal predecessors, (173), 55 states have call successors, (55), 4 states have call predecessors, (55), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-24 03:05:52,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2022-02-24 03:05:52,272 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 421 [2022-02-24 03:05:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:05:52,272 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2022-02-24 03:05:52,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 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 03:05:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2022-02-24 03:05:52,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-02-24 03:05:52,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:05:52,274 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:05:52,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 03:05:52,275 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:05:52,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:05:52,275 INFO L85 PathProgramCache]: Analyzing trace with hash -421041275, now seen corresponding path program 52 times [2022-02-24 03:05:52,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:05:52,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538770445] [2022-02-24 03:05:52,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:05:52,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:05:52,279 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:05:52,280 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:05:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:05:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:05:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:05:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:05:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:05:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:05:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:05:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:05:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:05:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:05:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:05:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:05:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:05:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:05:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:05:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:05:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:05:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:05:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:05:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:05:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:05:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:05:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:05:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:05:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:05:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:05:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:05:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:05:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:05:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:05:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:05:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:05:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:05:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:05:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:05:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:05:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:05:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:05:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:05:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:05:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:05:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:05:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:05:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:05:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:05:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:05:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:05:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:05:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:05:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:05:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:05:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:05:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:05:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:05:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2022-02-24 03:05:53,467 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:05:53,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538770445] [2022-02-24 03:05:53,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1538770445] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:05:53,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:05:53,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-24 03:05:53,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890657107] [2022-02-24 03:05:53,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:05:53,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-24 03:05:53,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:05:53,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-24 03:05:53,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2919, Unknown=0, NotChecked=0, Total=3080 [2022-02-24 03:05:53,469 INFO L87 Difference]: Start difference. First operand 230 states and 282 transitions. Second operand has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 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 03:06:05,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:06:05,357 INFO L93 Difference]: Finished difference Result 460 states and 568 transitions. [2022-02-24 03:06:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-24 03:06:05,358 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 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 429 [2022-02-24 03:06:05,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:06:05,360 INFO L225 Difference]: With dead ends: 460 [2022-02-24 03:06:05,360 INFO L226 Difference]: Without dead ends: 449 [2022-02-24 03:06:05,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=477, Invalid=11295, Unknown=0, NotChecked=0, Total=11772 [2022-02-24 03:06:05,362 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 497 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24674 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 25262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 24674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:06:05,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 299 Invalid, 25262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 24674 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-02-24 03:06:05,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-02-24 03:06:05,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 234. [2022-02-24 03:06:05,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 174 states have (on average 1.0114942528735633) internal successors, (176), 174 states have internal predecessors, (176), 56 states have call successors, (56), 4 states have call predecessors, (56), 3 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-24 03:06:05,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 287 transitions. [2022-02-24 03:06:05,471 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 287 transitions. Word has length 429 [2022-02-24 03:06:05,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:06:05,472 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 287 transitions. [2022-02-24 03:06:05,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 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 03:06:05,472 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 287 transitions. [2022-02-24 03:06:05,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2022-02-24 03:06:05,473 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:06:05,473 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:06:05,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 03:06:05,474 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:06:05,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:06:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash 302667488, now seen corresponding path program 53 times [2022-02-24 03:06:05,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:06:05,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743068441] [2022-02-24 03:06:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:06:05,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:06:05,479 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:06:05,479 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:06:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:06:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:06:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:06:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:06:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:06:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:06:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:06:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:06:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:06:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:06:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:06:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:06:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:06:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:06:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:06:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:06:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:06:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:06:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:06:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:06:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:06:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:06:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:06:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:06:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:06:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:06:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:06:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:06:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:06:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:06:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:06:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:06:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:06:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:06:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:06:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:06:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:06:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:06:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:06:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:06:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:06:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:06:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:06:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:06:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:06:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:06:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:06:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:06:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:07,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:06:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:07,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:06:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:06:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:07,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:06:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:07,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:06:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:06:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:07,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2022-02-24 03:06:07,014 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:06:07,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743068441] [2022-02-24 03:06:07,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1743068441] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:06:07,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:06:07,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2022-02-24 03:06:07,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352834854] [2022-02-24 03:06:07,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:06:07,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-02-24 03:06:07,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:06:07,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-02-24 03:06:07,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=3028, Unknown=0, NotChecked=0, Total=3192 [2022-02-24 03:06:07,016 INFO L87 Difference]: Start difference. First operand 234 states and 287 transitions. Second operand has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 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 03:06:17,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:06:17,953 INFO L93 Difference]: Finished difference Result 468 states and 578 transitions. [2022-02-24 03:06:17,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-24 03:06:17,953 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 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 437 [2022-02-24 03:06:17,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:06:17,955 INFO L225 Difference]: With dead ends: 468 [2022-02-24 03:06:17,955 INFO L226 Difference]: Without dead ends: 457 [2022-02-24 03:06:17,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=486, Invalid=11724, Unknown=0, NotChecked=0, Total=12210 [2022-02-24 03:06:17,960 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 549 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 23110 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 23752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 23110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:06:17,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 197 Invalid, 23752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 23110 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-02-24 03:06:17,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-02-24 03:06:18,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 238. [2022-02-24 03:06:18,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 177 states have (on average 1.0112994350282485) internal successors, (179), 177 states have internal predecessors, (179), 57 states have call successors, (57), 4 states have call predecessors, (57), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-24 03:06:18,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 292 transitions. [2022-02-24 03:06:18,062 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 292 transitions. Word has length 437 [2022-02-24 03:06:18,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:06:18,062 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 292 transitions. [2022-02-24 03:06:18,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 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 03:06:18,067 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 292 transitions. [2022-02-24 03:06:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-02-24 03:06:18,068 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:06:18,068 INFO L514 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:06:18,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 03:06:18,068 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:06:18,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:06:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2124040389, now seen corresponding path program 54 times [2022-02-24 03:06:18,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:06:18,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551601512] [2022-02-24 03:06:18,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:06:18,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:06:18,091 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:06:18,091 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:06:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:06:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:06:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:06:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:06:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:06:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:06:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:06:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:06:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:06:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:06:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:06:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:06:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:06:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:06:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:06:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:06:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:06:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:06:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:06:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:06:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:06:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:06:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:06:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:06:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:06:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:06:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:06:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:06:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:06:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:06:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:06:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:06:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:06:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:06:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:06:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:06:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:06:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:06:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:06:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:06:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:06:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:06:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:06:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:06:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:06:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:06:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:06:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:06:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:06:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:06:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:06:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:06:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:06:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:06:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:06:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:19,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2022-02-24 03:06:19,763 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:06:19,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551601512] [2022-02-24 03:06:19,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1551601512] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:06:19,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:06:19,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-24 03:06:19,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912461759] [2022-02-24 03:06:19,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:06:19,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-24 03:06:19,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:06:19,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-24 03:06:19,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=3139, Unknown=0, NotChecked=0, Total=3306 [2022-02-24 03:06:19,764 INFO L87 Difference]: Start difference. First operand 238 states and 292 transitions. Second operand has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-24 03:06:33,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:06:33,130 INFO L93 Difference]: Finished difference Result 476 states and 588 transitions. [2022-02-24 03:06:33,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-24 03:06:33,131 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 445 [2022-02-24 03:06:33,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:06:33,133 INFO L225 Difference]: With dead ends: 476 [2022-02-24 03:06:33,133 INFO L226 Difference]: Without dead ends: 465 [2022-02-24 03:06:33,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1486 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=495, Invalid=12161, Unknown=0, NotChecked=0, Total=12656 [2022-02-24 03:06:33,134 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 465 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 29570 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 30130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 29570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:06:33,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 435 Invalid, 30130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 29570 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-02-24 03:06:33,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-02-24 03:06:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 242. [2022-02-24 03:06:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 180 states have (on average 1.011111111111111) internal successors, (182), 180 states have internal predecessors, (182), 58 states have call successors, (58), 4 states have call predecessors, (58), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-24 03:06:33,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 297 transitions. [2022-02-24 03:06:33,248 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 297 transitions. Word has length 445 [2022-02-24 03:06:33,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:06:33,248 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 297 transitions. [2022-02-24 03:06:33,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-24 03:06:33,248 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 297 transitions. [2022-02-24 03:06:33,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2022-02-24 03:06:33,250 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:06:33,250 INFO L514 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:06:33,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-24 03:06:33,250 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:06:33,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:06:33,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1011577706, now seen corresponding path program 55 times [2022-02-24 03:06:33,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:06:33,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244515467] [2022-02-24 03:06:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:06:33,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:06:33,255 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:06:33,255 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:06:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:06:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:06:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:06:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:06:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:06:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:06:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:06:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:06:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:06:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:06:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:06:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:06:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:06:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:06:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:06:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:06:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:06:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:06:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:06:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:06:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:06:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:06:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:06:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:06:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:06:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:06:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:06:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:06:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:06:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:06:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:06:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:06:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:06:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:06:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:06:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:06:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:06:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:06:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:06:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:06:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:06:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:06:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:06:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:06:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:06:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:06:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:06:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:06:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:06:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:06:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:06:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:06:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:06:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:06:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:06:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:06:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2022-02-24 03:06:34,430 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:06:34,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244515467] [2022-02-24 03:06:34,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [244515467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:06:34,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:06:34,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2022-02-24 03:06:34,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644447947] [2022-02-24 03:06:34,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:06:34,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-02-24 03:06:34,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:06:34,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-02-24 03:06:34,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=3252, Unknown=0, NotChecked=0, Total=3422 [2022-02-24 03:06:34,434 INFO L87 Difference]: Start difference. First operand 242 states and 297 transitions. Second operand has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-24 03:06:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:06:47,582 INFO L93 Difference]: Finished difference Result 484 states and 598 transitions. [2022-02-24 03:06:47,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-24 03:06:47,583 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Word has length 453 [2022-02-24 03:06:47,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:06:47,585 INFO L225 Difference]: With dead ends: 484 [2022-02-24 03:06:47,585 INFO L226 Difference]: Without dead ends: 473 [2022-02-24 03:06:47,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=504, Invalid=12606, Unknown=0, NotChecked=0, Total=13110 [2022-02-24 03:06:47,587 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 473 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 30668 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 31238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 30668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:06:47,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 443 Invalid, 31238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 30668 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-02-24 03:06:47,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-02-24 03:06:47,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 246. [2022-02-24 03:06:47,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 183 states have (on average 1.010928961748634) internal successors, (185), 183 states have internal predecessors, (185), 59 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-24 03:06:47,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2022-02-24 03:06:47,739 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 453 [2022-02-24 03:06:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:06:47,740 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2022-02-24 03:06:47,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-24 03:06:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2022-02-24 03:06:47,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-02-24 03:06:47,742 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:06:47,742 INFO L514 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:06:47,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 03:06:47,742 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:06:47,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:06:47,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2092029681, now seen corresponding path program 56 times [2022-02-24 03:06:47,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:06:47,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835080738] [2022-02-24 03:06:47,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:06:47,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:06:47,762 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:06:47,762 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:06:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:06:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:06:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:06:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:06:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:06:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:06:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:06:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:06:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:06:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:06:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:06:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:06:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:06:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:06:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:06:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:06:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:06:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:06:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:06:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:06:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:06:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:06:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:06:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:06:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:06:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:06:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:06:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:06:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:06:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:06:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:06:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:06:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:06:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:06:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:06:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:06:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:06:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:06:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:06:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:06:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:06:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:06:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:06:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:06:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:06:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:06:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:06:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:06:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:06:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:06:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:06:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:06:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:06:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:06:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:06:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:06:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:06:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:06:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2022-02-24 03:06:49,310 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:06:49,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835080738] [2022-02-24 03:06:49,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [835080738] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:06:49,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:06:49,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-24 03:06:49,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221962758] [2022-02-24 03:06:49,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:06:49,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-24 03:06:49,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:06:49,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-24 03:06:49,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=3367, Unknown=0, NotChecked=0, Total=3540 [2022-02-24 03:06:49,312 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-24 03:07:02,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:07:02,758 INFO L93 Difference]: Finished difference Result 492 states and 608 transitions. [2022-02-24 03:07:02,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-24 03:07:02,758 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 461 [2022-02-24 03:07:02,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:07:02,761 INFO L225 Difference]: With dead ends: 492 [2022-02-24 03:07:02,761 INFO L226 Difference]: Without dead ends: 481 [2022-02-24 03:07:02,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1597 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=513, Invalid=13059, Unknown=0, NotChecked=0, Total=13572 [2022-02-24 03:07:02,762 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 569 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 26374 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 27042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 26374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:07:02,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 231 Invalid, 27042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 26374 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-02-24 03:07:02,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-02-24 03:07:02,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 250. [2022-02-24 03:07:02,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 186 states have (on average 1.010752688172043) internal successors, (188), 186 states have internal predecessors, (188), 60 states have call successors, (60), 4 states have call predecessors, (60), 3 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-24 03:07:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 307 transitions. [2022-02-24 03:07:02,936 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 307 transitions. Word has length 461 [2022-02-24 03:07:02,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:07:02,936 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 307 transitions. [2022-02-24 03:07:02,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-24 03:07:02,937 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 307 transitions. [2022-02-24 03:07:02,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-02-24 03:07:02,939 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:07:02,939 INFO L514 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:07:02,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-24 03:07:02,940 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:07:02,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:07:02,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1696110156, now seen corresponding path program 57 times [2022-02-24 03:07:02,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:07:02,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753706467] [2022-02-24 03:07:02,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:07:02,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:07:02,946 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:07:02,946 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:07:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:07:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:07:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:07:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:07:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:07:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:07:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:07:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:07:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:07:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:07:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:07:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:07:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:07:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:07:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:07:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:07:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:07:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:07:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:07:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:07:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:07:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:07:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:07:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:07:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:07:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:07:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:07:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:07:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:07:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:07:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:07:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:07:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:07:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:07:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:07:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:07:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:07:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:07:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:07:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:07:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:07:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:07:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:07:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:07:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:07:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:07:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:07:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:07:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:07:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:07:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:07:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:07:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:07:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:07:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:07:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:07:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:07:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:07:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2022-02-24 03:07:04,581 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:07:04,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753706467] [2022-02-24 03:07:04,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [753706467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:07:04,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:07:04,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2022-02-24 03:07:04,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758231149] [2022-02-24 03:07:04,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:07:04,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-24 03:07:04,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:07:04,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-24 03:07:04,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=3484, Unknown=0, NotChecked=0, Total=3660 [2022-02-24 03:07:04,583 INFO L87 Difference]: Start difference. First operand 250 states and 307 transitions. Second operand has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-24 03:07:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:07:17,570 INFO L93 Difference]: Finished difference Result 500 states and 618 transitions. [2022-02-24 03:07:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-24 03:07:17,571 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Word has length 469 [2022-02-24 03:07:17,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:07:17,574 INFO L225 Difference]: With dead ends: 500 [2022-02-24 03:07:17,574 INFO L226 Difference]: Without dead ends: 489 [2022-02-24 03:07:17,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1654 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=522, Invalid=13520, Unknown=0, NotChecked=0, Total=14042 [2022-02-24 03:07:17,584 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 585 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 26924 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 27610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 26924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:07:17,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 219 Invalid, 27610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 26924 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 03:07:17,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-02-24 03:07:17,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 254. [2022-02-24 03:07:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 189 states have (on average 1.0105820105820107) internal successors, (191), 189 states have internal predecessors, (191), 61 states have call successors, (61), 4 states have call predecessors, (61), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-24 03:07:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 312 transitions. [2022-02-24 03:07:17,759 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 312 transitions. Word has length 469 [2022-02-24 03:07:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:07:17,759 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 312 transitions. [2022-02-24 03:07:17,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-24 03:07:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 312 transitions. [2022-02-24 03:07:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-02-24 03:07:17,761 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:07:17,762 INFO L514 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:07:17,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-24 03:07:17,762 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:07:17,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:07:17,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1252248231, now seen corresponding path program 58 times [2022-02-24 03:07:17,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:07:17,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541207339] [2022-02-24 03:07:17,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:07:17,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:07:17,767 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:07:17,767 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:07:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:07:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:07:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:07:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:07:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:07:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:07:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:07:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:07:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:07:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:07:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:07:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:07:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:07:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:07:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:07:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:07:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:07:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:07:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:07:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:07:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:07:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:07:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:07:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:07:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:07:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:07:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:07:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:07:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:07:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:07:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:07:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:07:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:07:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:07:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:07:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:07:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:07:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:07:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:07:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:07:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:07:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:07:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:07:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:07:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:07:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:07:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:07:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:07:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:07:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:07:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:07:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:07:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:07:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:07:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:07:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:07:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:07:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:07:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:07:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2022-02-24 03:07:19,326 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:07:19,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541207339] [2022-02-24 03:07:19,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [541207339] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:07:19,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:07:19,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-24 03:07:19,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693799008] [2022-02-24 03:07:19,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:07:19,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-24 03:07:19,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:07:19,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-24 03:07:19,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=3603, Unknown=0, NotChecked=0, Total=3782 [2022-02-24 03:07:19,357 INFO L87 Difference]: Start difference. First operand 254 states and 312 transitions. Second operand has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-24 03:07:34,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:07:34,136 INFO L93 Difference]: Finished difference Result 508 states and 628 transitions. [2022-02-24 03:07:34,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-24 03:07:34,136 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Word has length 477 [2022-02-24 03:07:34,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:07:34,149 INFO L225 Difference]: With dead ends: 508 [2022-02-24 03:07:34,149 INFO L226 Difference]: Without dead ends: 497 [2022-02-24 03:07:34,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1712 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=531, Invalid=13989, Unknown=0, NotChecked=0, Total=14520 [2022-02-24 03:07:34,150 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 521 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 32558 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 33182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 32558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:07:34,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 407 Invalid, 33182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 32558 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-02-24 03:07:34,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-02-24 03:07:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 258. [2022-02-24 03:07:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 192 states have (on average 1.0104166666666667) internal successors, (194), 192 states have internal predecessors, (194), 62 states have call successors, (62), 4 states have call predecessors, (62), 3 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-24 03:07:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 317 transitions. [2022-02-24 03:07:34,281 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 317 transitions. Word has length 477 [2022-02-24 03:07:34,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:07:34,281 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 317 transitions. [2022-02-24 03:07:34,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-24 03:07:34,281 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 317 transitions. [2022-02-24 03:07:34,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-02-24 03:07:34,283 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:07:34,283 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:07:34,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-24 03:07:34,283 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:07:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:07:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash 269382658, now seen corresponding path program 59 times [2022-02-24 03:07:34,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:07:34,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556142089] [2022-02-24 03:07:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:07:34,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:07:34,288 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:07:34,288 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:07:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:07:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:07:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:07:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:07:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:07:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:07:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:07:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:07:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:07:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:07:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:07:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:07:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:07:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:07:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:07:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:07:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:07:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:07:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:07:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:07:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:07:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:07:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:07:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:07:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:07:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:07:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:07:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:07:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:07:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:07:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:07:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:07:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:07:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:07:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:07:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:07:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:07:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:07:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:07:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:07:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:07:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:07:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:07:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:07:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:07:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:07:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:07:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:07:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:07:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:07:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:07:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:07:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:07:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:07:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:07:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:07:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:07:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:07:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:07:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:07:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-02-24 03:07:35,898 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:07:35,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556142089] [2022-02-24 03:07:35,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [556142089] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:07:35,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:07:35,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2022-02-24 03:07:35,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385548335] [2022-02-24 03:07:35,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:07:35,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-02-24 03:07:35,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:07:35,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-02-24 03:07:35,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=3724, Unknown=0, NotChecked=0, Total=3906 [2022-02-24 03:07:35,900 INFO L87 Difference]: Start difference. First operand 258 states and 317 transitions. Second operand has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-24 03:07:51,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:07:51,264 INFO L93 Difference]: Finished difference Result 516 states and 638 transitions. [2022-02-24 03:07:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-24 03:07:51,279 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 485 [2022-02-24 03:07:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:07:51,281 INFO L225 Difference]: With dead ends: 516 [2022-02-24 03:07:51,281 INFO L226 Difference]: Without dead ends: 505 [2022-02-24 03:07:51,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1771 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=540, Invalid=14466, Unknown=0, NotChecked=0, Total=15006 [2022-02-24 03:07:51,283 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 549 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 32422 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 33076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 32422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:07:51,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 365 Invalid, 33076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 32422 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-02-24 03:07:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-02-24 03:07:51,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 262. [2022-02-24 03:07:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 195 states have internal predecessors, (197), 63 states have call successors, (63), 4 states have call predecessors, (63), 3 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-24 03:07:51,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 322 transitions. [2022-02-24 03:07:51,455 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 322 transitions. Word has length 485 [2022-02-24 03:07:51,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:07:51,455 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 322 transitions. [2022-02-24 03:07:51,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-24 03:07:51,455 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 322 transitions. [2022-02-24 03:07:51,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-02-24 03:07:51,457 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:07:51,457 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:07:51,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-24 03:07:51,457 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:07:51,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:07:51,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1391226275, now seen corresponding path program 60 times [2022-02-24 03:07:51,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:07:51,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839574933] [2022-02-24 03:07:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:07:51,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:07:51,462 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:07:51,462 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:07:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:07:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:07:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:07:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:07:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:07:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:07:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:07:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:07:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:07:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:07:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:07:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:07:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:07:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:07:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:07:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:07:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:07:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:07:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:07:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:07:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:07:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:07:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:07:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:07:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:07:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:07:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:07:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:07:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:07:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:07:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:07:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:07:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:07:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:07:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:07:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:07:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:07:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:07:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:07:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:07:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:07:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:07:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:07:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:07:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:07:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:07:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:07:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:07:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:07:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:07:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:07:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:07:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:07:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:07:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:07:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:07:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:07:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:07:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:07:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:07:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:07:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:07:53,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2022-02-24 03:07:53,345 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:07:53,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839574933] [2022-02-24 03:07:53,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [839574933] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:07:53,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:07:53,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-24 03:07:53,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633887926] [2022-02-24 03:07:53,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:07:53,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-24 03:07:53,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:07:53,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-24 03:07:53,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=3847, Unknown=0, NotChecked=0, Total=4032 [2022-02-24 03:07:53,351 INFO L87 Difference]: Start difference. First operand 262 states and 322 transitions. Second operand has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-24 03:08:08,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:08:08,519 INFO L93 Difference]: Finished difference Result 524 states and 648 transitions. [2022-02-24 03:08:08,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-24 03:08:08,520 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Word has length 493 [2022-02-24 03:08:08,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:08:08,522 INFO L225 Difference]: With dead ends: 524 [2022-02-24 03:08:08,522 INFO L226 Difference]: Without dead ends: 513 [2022-02-24 03:08:08,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1831 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=549, Invalid=14951, Unknown=0, NotChecked=0, Total=15500 [2022-02-24 03:08:08,527 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 615 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 29777 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 30499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 29777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:08:08,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 228 Invalid, 30499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 29777 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-02-24 03:08:08,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-02-24 03:08:08,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 266. [2022-02-24 03:08:08,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 198 states have (on average 1.0101010101010102) internal successors, (200), 198 states have internal predecessors, (200), 64 states have call successors, (64), 4 states have call predecessors, (64), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-24 03:08:08,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 327 transitions. [2022-02-24 03:08:08,749 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 327 transitions. Word has length 493 [2022-02-24 03:08:08,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:08:08,749 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 327 transitions. [2022-02-24 03:08:08,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-24 03:08:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 327 transitions. [2022-02-24 03:08:08,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-02-24 03:08:08,752 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:08:08,752 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:08:08,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-24 03:08:08,752 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:08:08,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:08:08,753 INFO L85 PathProgramCache]: Analyzing trace with hash 778970552, now seen corresponding path program 61 times [2022-02-24 03:08:08,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:08:08,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020819894] [2022-02-24 03:08:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:08:08,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:08:08,758 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:08:08,759 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:08:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:08:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:08:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:08:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:08:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:08:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:08:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:08:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:08:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:08:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:08:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:08:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:08:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:08:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:08:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:08:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:08:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:08:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:08:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:08:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:08:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:08:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:08:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:08:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:08:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:08:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:08:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:08:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:08:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:08:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:08:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:08:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:08:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:08:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:08:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:08:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:08:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:08:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:08:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:08:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:08:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:08:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:08:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:08:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:08:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:08:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:08:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:08:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:08:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:08:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:08:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:08:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:08:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:08:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:08:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:08:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:08:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:08:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:08:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:08:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:08:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:08:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:08:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2022-02-24 03:08:10,772 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:08:10,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020819894] [2022-02-24 03:08:10,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2020819894] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:08:10,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:08:10,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [] total 65 [2022-02-24 03:08:10,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934672228] [2022-02-24 03:08:10,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:08:10,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-02-24 03:08:10,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:08:10,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-02-24 03:08:10,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=3972, Unknown=0, NotChecked=0, Total=4160 [2022-02-24 03:08:10,775 INFO L87 Difference]: Start difference. First operand 266 states and 327 transitions. Second operand has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-24 03:08:26,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:08:26,896 INFO L93 Difference]: Finished difference Result 532 states and 658 transitions. [2022-02-24 03:08:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-24 03:08:26,898 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 501 [2022-02-24 03:08:26,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:08:26,899 INFO L225 Difference]: With dead ends: 532 [2022-02-24 03:08:26,899 INFO L226 Difference]: Without dead ends: 521 [2022-02-24 03:08:26,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1892 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=558, Invalid=15444, Unknown=0, NotChecked=0, Total=16002 [2022-02-24 03:08:26,903 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 581 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 33686 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 34376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 33686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:08:26,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 341 Invalid, 34376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 33686 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-02-24 03:08:26,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-02-24 03:08:27,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 270. [2022-02-24 03:08:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 201 states have (on average 1.0099502487562189) internal successors, (203), 201 states have internal predecessors, (203), 65 states have call successors, (65), 4 states have call predecessors, (65), 3 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-24 03:08:27,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 332 transitions. [2022-02-24 03:08:27,088 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 332 transitions. Word has length 501 [2022-02-24 03:08:27,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:08:27,088 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 332 transitions. [2022-02-24 03:08:27,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-24 03:08:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 332 transitions. [2022-02-24 03:08:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-02-24 03:08:27,090 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:08:27,091 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:08:27,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-24 03:08:27,091 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:08:27,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:08:27,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1244058093, now seen corresponding path program 62 times [2022-02-24 03:08:27,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:08:27,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607915853] [2022-02-24 03:08:27,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:08:27,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:08:27,099 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:08:27,099 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:08:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:08:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:08:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:08:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:08:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:08:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:08:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:08:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:08:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:08:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:08:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:08:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:08:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:08:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:08:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:08:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:08:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:08:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:08:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:08:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:08:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:08:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:08:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:08:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:08:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:08:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:08:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:08:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:08:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:08:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:08:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:08:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:08:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:08:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:08:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:08:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:08:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:08:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:08:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:08:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:08:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:08:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:08:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:08:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:08:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:08:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:08:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:08:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:08:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:08:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:08:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:08:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:08:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:08:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:08:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:08:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:08:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:08:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:08:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:08:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:08:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:08:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:08:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:08:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 7564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2022-02-24 03:08:29,151 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:08:29,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607915853] [2022-02-24 03:08:29,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [607915853] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:08:29,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:08:29,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-24 03:08:29,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729485734] [2022-02-24 03:08:29,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:08:29,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-24 03:08:29,152 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:08:29,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-24 03:08:29,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=4099, Unknown=0, NotChecked=0, Total=4290 [2022-02-24 03:08:29,153 INFO L87 Difference]: Start difference. First operand 270 states and 332 transitions. Second operand has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-24 03:08:45,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:08:45,247 INFO L93 Difference]: Finished difference Result 540 states and 668 transitions. [2022-02-24 03:08:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-24 03:08:45,247 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 509 [2022-02-24 03:08:45,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:08:45,249 INFO L225 Difference]: With dead ends: 540 [2022-02-24 03:08:45,250 INFO L226 Difference]: Without dead ends: 529 [2022-02-24 03:08:45,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1954 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=567, Invalid=15945, Unknown=0, NotChecked=0, Total=16512 [2022-02-24 03:08:45,251 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 607 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 33649 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 34367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 33649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:08:45,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 304 Invalid, 34367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [718 Valid, 33649 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-02-24 03:08:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-02-24 03:08:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 274. [2022-02-24 03:08:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 204 states have (on average 1.0098039215686274) internal successors, (206), 204 states have internal predecessors, (206), 66 states have call successors, (66), 4 states have call predecessors, (66), 3 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-02-24 03:08:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 337 transitions. [2022-02-24 03:08:45,464 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 337 transitions. Word has length 509 [2022-02-24 03:08:45,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:08:45,465 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 337 transitions. [2022-02-24 03:08:45,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-24 03:08:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 337 transitions. [2022-02-24 03:08:45,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-02-24 03:08:45,467 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:08:45,467 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:08:45,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-24 03:08:45,467 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:08:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:08:45,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2047847278, now seen corresponding path program 63 times [2022-02-24 03:08:45,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:08:45,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049884516] [2022-02-24 03:08:45,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:08:45,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:08:45,475 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:08:45,475 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:08:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:08:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:08:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:08:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:08:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:08:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:08:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:08:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:08:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:08:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:08:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:08:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:08:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:08:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:08:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:08:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:08:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:08:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:08:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:08:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:08:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:08:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:08:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:08:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:08:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:08:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:08:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:08:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:08:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:08:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:08:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:08:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:08:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:08:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:08:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:08:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:08:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:08:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:08:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:08:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:08:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:08:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:08:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:08:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:08:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:08:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:08:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:08:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:08:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:08:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:08:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:08:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:08:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:08:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:08:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:08:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:08:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:08:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:08:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:08:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:08:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:08:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:08:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:08:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:08:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:08:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2022-02-24 03:08:47,370 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:08:47,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049884516] [2022-02-24 03:08:47,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2049884516] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:08:47,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:08:47,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2022-02-24 03:08:47,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574639782] [2022-02-24 03:08:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:08:47,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-02-24 03:08:47,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:08:47,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-02-24 03:08:47,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=4228, Unknown=0, NotChecked=0, Total=4422 [2022-02-24 03:08:47,372 INFO L87 Difference]: Start difference. First operand 274 states and 337 transitions. Second operand has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-24 03:09:06,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:09:06,222 INFO L93 Difference]: Finished difference Result 548 states and 678 transitions. [2022-02-24 03:09:06,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-24 03:09:06,223 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 517 [2022-02-24 03:09:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:09:06,226 INFO L225 Difference]: With dead ends: 548 [2022-02-24 03:09:06,226 INFO L226 Difference]: Without dead ends: 537 [2022-02-24 03:09:06,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2017 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=576, Invalid=16454, Unknown=0, NotChecked=0, Total=17030 [2022-02-24 03:09:06,227 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 585 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 36884 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 37582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 36884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:09:06,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 387 Invalid, 37582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [698 Valid, 36884 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-02-24 03:09:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-02-24 03:09:06,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 278. [2022-02-24 03:09:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 207 states have (on average 1.0096618357487923) internal successors, (209), 207 states have internal predecessors, (209), 67 states have call successors, (67), 4 states have call predecessors, (67), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-02-24 03:09:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 342 transitions. [2022-02-24 03:09:06,435 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 342 transitions. Word has length 517 [2022-02-24 03:09:06,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:09:06,435 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 342 transitions. [2022-02-24 03:09:06,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-24 03:09:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 342 transitions. [2022-02-24 03:09:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-02-24 03:09:06,438 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:09:06,438 INFO L514 BasicCegarLoop]: trace histogram [64, 64, 64, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:09:06,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-24 03:09:06,438 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:09:06,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:09:06,439 INFO L85 PathProgramCache]: Analyzing trace with hash -959668791, now seen corresponding path program 64 times [2022-02-24 03:09:06,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:09:06,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859210676] [2022-02-24 03:09:06,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:09:06,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:09:06,444 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:09:06,444 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:09:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:09:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:09:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:09:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:09:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:09:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:09:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:09:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:09:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:09:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:09:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:09:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:09:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:09:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:09:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:09:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:07,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:09:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:09:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:09:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:09:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:09:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:09:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:09:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:09:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:09:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:09:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:09:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:09:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:09:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:09:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:09:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:09:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:09:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:09:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:09:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:09:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:09:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:09:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:09:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:09:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:09:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:09:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:09:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:09:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:09:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:09:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:09:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:09:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:09:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:09:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:09:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:09:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:09:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:09:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:09:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:09:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:09:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:09:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:09:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:09:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:09:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:09:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:09:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:09:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:09:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:09:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2022-02-24 03:09:08,106 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:09:08,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859210676] [2022-02-24 03:09:08,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [859210676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:09:08,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:09:08,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-24 03:09:08,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311391750] [2022-02-24 03:09:08,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:09:08,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-24 03:09:08,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:09:08,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-24 03:09:08,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=4359, Unknown=0, NotChecked=0, Total=4556 [2022-02-24 03:09:08,108 INFO L87 Difference]: Start difference. First operand 278 states and 342 transitions. Second operand has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-02-24 03:09:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:09:25,541 INFO L93 Difference]: Finished difference Result 556 states and 688 transitions. [2022-02-24 03:09:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-24 03:09:25,542 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 525 [2022-02-24 03:09:25,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:09:25,544 INFO L225 Difference]: With dead ends: 556 [2022-02-24 03:09:25,544 INFO L226 Difference]: Without dead ends: 545 [2022-02-24 03:09:25,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=585, Invalid=16971, Unknown=0, NotChecked=0, Total=17556 [2022-02-24 03:09:25,545 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 655 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 33805 mSolverCounterSat, 770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 34575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 770 IncrementalHoareTripleChecker+Valid, 33805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:09:25,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 240 Invalid, 34575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [770 Valid, 33805 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-02-24 03:09:25,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-02-24 03:09:25,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 282. [2022-02-24 03:09:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 210 states have (on average 1.0095238095238095) internal successors, (212), 210 states have internal predecessors, (212), 68 states have call successors, (68), 4 states have call predecessors, (68), 3 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-02-24 03:09:25,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 347 transitions. [2022-02-24 03:09:25,724 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 347 transitions. Word has length 525 [2022-02-24 03:09:25,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:09:25,724 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 347 transitions. [2022-02-24 03:09:25,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-02-24 03:09:25,724 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 347 transitions. [2022-02-24 03:09:25,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-02-24 03:09:25,726 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:09:25,726 INFO L514 BasicCegarLoop]: trace histogram [65, 65, 65, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:09:25,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-24 03:09:25,726 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:09:25,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:09:25,727 INFO L85 PathProgramCache]: Analyzing trace with hash -53803740, now seen corresponding path program 65 times [2022-02-24 03:09:25,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:09:25,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361203001] [2022-02-24 03:09:25,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:09:25,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:09:25,731 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:09:25,732 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:09:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:09:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:09:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:09:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:09:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:09:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:09:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:09:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:09:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:09:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:09:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:09:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:09:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:09:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:09:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:09:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:09:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:09:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:09:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:09:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:09:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:09:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:09:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:09:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:09:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:09:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:09:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:09:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:09:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:09:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:09:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:09:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:09:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:09:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:09:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:09:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:09:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:09:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:09:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:09:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:09:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:09:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:09:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:09:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:09:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:09:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:09:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:09:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:09:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:09:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:09:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:09:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:09:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:09:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:09:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:09:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:09:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:09:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:09:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:09:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:09:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:09:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:09:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:09:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:09:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:09:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:09:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2022-02-24 03:09:27,539 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:09:27,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361203001] [2022-02-24 03:09:27,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [361203001] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:09:27,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:09:27,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2022-02-24 03:09:27,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034363526] [2022-02-24 03:09:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:09:27,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-02-24 03:09:27,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:09:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-02-24 03:09:27,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=4492, Unknown=0, NotChecked=0, Total=4692 [2022-02-24 03:09:27,541 INFO L87 Difference]: Start difference. First operand 282 states and 347 transitions. Second operand has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-02-24 03:09:47,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:09:47,566 INFO L93 Difference]: Finished difference Result 564 states and 698 transitions. [2022-02-24 03:09:47,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-24 03:09:47,567 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Word has length 533 [2022-02-24 03:09:47,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:09:47,569 INFO L225 Difference]: With dead ends: 564 [2022-02-24 03:09:47,569 INFO L226 Difference]: Without dead ends: 553 [2022-02-24 03:09:47,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2146 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=594, Invalid=17496, Unknown=0, NotChecked=0, Total=18090 [2022-02-24 03:09:47,571 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 571 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 41479 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 42167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 41479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:09:47,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [573 Valid, 478 Invalid, 42167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [688 Valid, 41479 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2022-02-24 03:09:47,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-24 03:09:47,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 286. [2022-02-24 03:09:47,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 213 states have internal predecessors, (215), 69 states have call successors, (69), 4 states have call predecessors, (69), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-02-24 03:09:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 352 transitions. [2022-02-24 03:09:47,808 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 352 transitions. Word has length 533 [2022-02-24 03:09:47,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:09:47,808 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 352 transitions. [2022-02-24 03:09:47,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-02-24 03:09:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 352 transitions. [2022-02-24 03:09:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-02-24 03:09:47,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:09:47,812 INFO L514 BasicCegarLoop]: trace histogram [66, 66, 66, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:09:47,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-24 03:09:47,812 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:09:47,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:09:47,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1849302657, now seen corresponding path program 66 times [2022-02-24 03:09:47,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:09:47,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963041224] [2022-02-24 03:09:47,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:09:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:09:47,824 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:09:47,825 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:09:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:09:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:09:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:09:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:09:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:09:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:09:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:09:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:09:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:09:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:09:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:09:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:09:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:09:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:09:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:09:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:09:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:09:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:09:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:09:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:09:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:09:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:09:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:09:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:09:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:09:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:09:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:09:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:09:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:09:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:09:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:09:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:09:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:09:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:09:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:09:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:09:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:09:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:09:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:09:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:09:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:09:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:09:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:09:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:09:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:09:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:09:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:09:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:09:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:09:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:09:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:09:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:09:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:09:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:09:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:09:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:09:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:09:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:09:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:09:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:09:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:09:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:09:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:09:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:09:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:09:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:09:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:09:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:09:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2022-02-24 03:09:49,710 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:09:49,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963041224] [2022-02-24 03:09:49,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [963041224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:09:49,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:09:49,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-24 03:09:49,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726654044] [2022-02-24 03:09:49,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:09:49,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-24 03:09:49,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:09:49,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-24 03:09:49,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=4627, Unknown=0, NotChecked=0, Total=4830 [2022-02-24 03:09:49,712 INFO L87 Difference]: Start difference. First operand 286 states and 352 transitions. Second operand has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-02-24 03:10:07,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:10:07,656 INFO L93 Difference]: Finished difference Result 572 states and 708 transitions. [2022-02-24 03:10:07,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-24 03:10:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Word has length 541 [2022-02-24 03:10:07,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:10:07,660 INFO L225 Difference]: With dead ends: 572 [2022-02-24 03:10:07,661 INFO L226 Difference]: Without dead ends: 561 [2022-02-24 03:10:07,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2212 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=603, Invalid=18029, Unknown=0, NotChecked=0, Total=18632 [2022-02-24 03:10:07,678 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 603 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 41063 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 41785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 41063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:10:07,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 426 Invalid, 41785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 41063 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2022-02-24 03:10:07,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-02-24 03:10:07,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 290. [2022-02-24 03:10:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 216 states have (on average 1.0092592592592593) internal successors, (218), 216 states have internal predecessors, (218), 70 states have call successors, (70), 4 states have call predecessors, (70), 3 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-02-24 03:10:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 357 transitions. [2022-02-24 03:10:07,863 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 357 transitions. Word has length 541 [2022-02-24 03:10:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:10:07,864 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 357 transitions. [2022-02-24 03:10:07,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-02-24 03:10:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 357 transitions. [2022-02-24 03:10:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-02-24 03:10:07,866 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:10:07,866 INFO L514 BasicCegarLoop]: trace histogram [67, 67, 67, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:10:07,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-24 03:10:07,866 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:10:07,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:10:07,867 INFO L85 PathProgramCache]: Analyzing trace with hash 276312794, now seen corresponding path program 67 times [2022-02-24 03:10:07,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:10:07,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7197538] [2022-02-24 03:10:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:10:07,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:10:07,878 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:10:07,878 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:10:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:10:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:10:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:10:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:10:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:10:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:10:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:10:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:10:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:10:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:10:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:10:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:10:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:10:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:10:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:10:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:10:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:10:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:10:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:10:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:10:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:10:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:10:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:10:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:10:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:10:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:10:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:10:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:10:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:10:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:10:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:10:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:10:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:10:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:10:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:10:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:10:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:10:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:10:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:10:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:10:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:10:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:10:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:10:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:10:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:10:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:10:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:10:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:10:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:10:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:10:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:10:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:10:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:10:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:10:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:10:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:10:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:10:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:10:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:10:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:10:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:10:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:10:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:10:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:10:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:10:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:10:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:10:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:10:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2022-02-24 03:10:09,752 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:10:09,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7197538] [2022-02-24 03:10:09,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [7197538] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:10:09,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:10:09,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2022-02-24 03:10:09,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752770573] [2022-02-24 03:10:09,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:10:09,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-02-24 03:10:09,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:10:09,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-02-24 03:10:09,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=4764, Unknown=0, NotChecked=0, Total=4970 [2022-02-24 03:10:09,755 INFO L87 Difference]: Start difference. First operand 290 states and 357 transitions. Second operand has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-02-24 03:10:30,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:10:30,833 INFO L93 Difference]: Finished difference Result 580 states and 718 transitions. [2022-02-24 03:10:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-24 03:10:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Word has length 549 [2022-02-24 03:10:30,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:10:30,836 INFO L225 Difference]: With dead ends: 580 [2022-02-24 03:10:30,836 INFO L226 Difference]: Without dead ends: 569 [2022-02-24 03:10:30,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2279 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=612, Invalid=18570, Unknown=0, NotChecked=0, Total=19182 [2022-02-24 03:10:30,838 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 561 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 45984 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 46666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 45984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:10:30,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 559 Invalid, 46666 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [682 Valid, 45984 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-02-24 03:10:30,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-02-24 03:10:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 294. [2022-02-24 03:10:31,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 219 states have (on average 1.0091324200913243) internal successors, (221), 219 states have internal predecessors, (221), 71 states have call successors, (71), 4 states have call predecessors, (71), 3 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-02-24 03:10:31,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 362 transitions. [2022-02-24 03:10:31,110 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 362 transitions. Word has length 549 [2022-02-24 03:10:31,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:10:31,110 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 362 transitions. [2022-02-24 03:10:31,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-02-24 03:10:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 362 transitions. [2022-02-24 03:10:31,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-02-24 03:10:31,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:10:31,114 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:10:31,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-24 03:10:31,114 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:10:31,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:10:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash 412940597, now seen corresponding path program 68 times [2022-02-24 03:10:31,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:10:31,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612288028] [2022-02-24 03:10:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:10:31,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:10:31,123 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:10:31,123 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:10:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:10:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:10:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:10:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:10:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:10:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:10:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:10:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:10:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:10:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:10:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:10:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:10:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:10:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:10:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:10:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:10:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:10:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:10:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:10:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:32,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:10:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:10:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:10:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:10:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:10:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:10:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:10:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:10:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:10:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:10:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:10:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:10:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:10:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:10:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:10:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:10:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:10:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:10:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:10:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:10:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:10:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:10:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:10:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:10:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:10:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:10:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:10:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:10:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:10:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:10:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:10:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:10:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:10:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:10:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:10:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:10:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:10:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:10:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:10:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:10:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:10:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:10:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:10:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:10:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:10:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:10:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:10:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:10:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:10:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:10:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2022-02-24 03:10:33,092 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:10:33,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612288028] [2022-02-24 03:10:33,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1612288028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:10:33,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:10:33,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-24 03:10:33,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156138019] [2022-02-24 03:10:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:10:33,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-24 03:10:33,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:10:33,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-24 03:10:33,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=4903, Unknown=0, NotChecked=0, Total=5112 [2022-02-24 03:10:33,095 INFO L87 Difference]: Start difference. First operand 294 states and 362 transitions. Second operand has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-02-24 03:10:55,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:10:55,001 INFO L93 Difference]: Finished difference Result 588 states and 728 transitions. [2022-02-24 03:10:55,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-24 03:10:55,002 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Word has length 557 [2022-02-24 03:10:55,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:10:55,005 INFO L225 Difference]: With dead ends: 588 [2022-02-24 03:10:55,005 INFO L226 Difference]: Without dead ends: 577 [2022-02-24 03:10:55,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2347 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=621, Invalid=19119, Unknown=0, NotChecked=0, Total=19740 [2022-02-24 03:10:55,007 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 625 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 43234 mSolverCounterSat, 748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 43982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 748 IncrementalHoareTripleChecker+Valid, 43234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:10:55,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 427 Invalid, 43982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [748 Valid, 43234 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-02-24 03:10:55,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-02-24 03:10:55,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 298. [2022-02-24 03:10:55,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 222 states have (on average 1.009009009009009) internal successors, (224), 222 states have internal predecessors, (224), 72 states have call successors, (72), 4 states have call predecessors, (72), 3 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-02-24 03:10:55,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 367 transitions. [2022-02-24 03:10:55,215 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 367 transitions. Word has length 557 [2022-02-24 03:10:55,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:10:55,216 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 367 transitions. [2022-02-24 03:10:55,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-02-24 03:10:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 367 transitions. [2022-02-24 03:10:55,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-02-24 03:10:55,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:10:55,218 INFO L514 BasicCegarLoop]: trace histogram [69, 69, 69, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:10:55,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-24 03:10:55,218 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:10:55,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:10:55,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1592734864, now seen corresponding path program 69 times [2022-02-24 03:10:55,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:10:55,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322365719] [2022-02-24 03:10:55,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:10:55,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:10:55,236 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:10:55,236 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:10:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:10:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:10:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:10:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:10:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:10:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:10:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:10:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:10:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:10:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:10:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:10:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:10:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:10:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:10:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:10:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:10:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:10:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:10:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:10:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:10:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:10:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:10:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:10:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:10:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:10:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:10:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:10:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:10:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:10:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:10:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:10:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:10:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:10:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:10:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:10:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:10:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:10:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:10:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:10:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:10:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:10:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:10:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:10:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:10:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:10:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:10:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:10:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:10:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:10:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:10:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:10:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:10:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:10:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:10:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:10:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:10:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:10:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:10:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:10:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:10:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:10:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:10:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:10:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:10:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:10:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:10:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:10:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:10:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:10:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:10:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:10:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2022-02-24 03:10:56,915 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:10:56,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322365719] [2022-02-24 03:10:56,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [322365719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:10:56,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:10:56,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2022-02-24 03:10:56,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018467796] [2022-02-24 03:10:56,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:10:56,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-02-24 03:10:56,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:10:56,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-02-24 03:10:56,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=5044, Unknown=0, NotChecked=0, Total=5256 [2022-02-24 03:10:56,918 INFO L87 Difference]: Start difference. First operand 298 states and 367 transitions. Second operand has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-02-24 03:11:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:11:17,960 INFO L93 Difference]: Finished difference Result 596 states and 738 transitions. [2022-02-24 03:11:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-24 03:11:17,961 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Word has length 565 [2022-02-24 03:11:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:11:17,963 INFO L225 Difference]: With dead ends: 596 [2022-02-24 03:11:17,963 INFO L226 Difference]: Without dead ends: 585 [2022-02-24 03:11:17,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2416 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=630, Invalid=19676, Unknown=0, NotChecked=0, Total=20306 [2022-02-24 03:11:17,964 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 695 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 39945 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 40765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 39945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-02-24 03:11:17,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [697 Valid, 280 Invalid, 40765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [820 Valid, 39945 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-02-24 03:11:17,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-02-24 03:11:18,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 302. [2022-02-24 03:11:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 225 states have (on average 1.008888888888889) internal successors, (227), 225 states have internal predecessors, (227), 73 states have call successors, (73), 4 states have call predecessors, (73), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-02-24 03:11:18,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 372 transitions. [2022-02-24 03:11:18,146 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 372 transitions. Word has length 565 [2022-02-24 03:11:18,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:11:18,147 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 372 transitions. [2022-02-24 03:11:18,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-02-24 03:11:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 372 transitions. [2022-02-24 03:11:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2022-02-24 03:11:18,149 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:11:18,149 INFO L514 BasicCegarLoop]: trace histogram [70, 70, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:11:18,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-24 03:11:18,149 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:11:18,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:11:18,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1389763349, now seen corresponding path program 70 times [2022-02-24 03:11:18,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:11:18,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145680903] [2022-02-24 03:11:18,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:11:18,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:11:18,177 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:11:18,177 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:11:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:11:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:11:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:11:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:11:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:11:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:11:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:11:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:11:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:11:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:11:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:11:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:11:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:11:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:11:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:11:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:11:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:11:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:11:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:11:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:11:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:11:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:11:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:11:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:11:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:11:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:11:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:11:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:11:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:11:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:11:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:11:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:11:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:11:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:11:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:11:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:11:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:11:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:11:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:11:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:19,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:11:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:11:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:11:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:11:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:11:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:11:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:11:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:11:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:11:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:11:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:11:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:11:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:11:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:11:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:11:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:11:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:11:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:11:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:11:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:11:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:11:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:11:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:11:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:11:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:11:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:11:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:11:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:11:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:11:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:11:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:11:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:11:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2022-02-24 03:11:20,048 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:11:20,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145680903] [2022-02-24 03:11:20,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [145680903] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:11:20,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:11:20,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-24 03:11:20,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667800899] [2022-02-24 03:11:20,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:11:20,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-24 03:11:20,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:11:20,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-24 03:11:20,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=5187, Unknown=0, NotChecked=0, Total=5402 [2022-02-24 03:11:20,049 INFO L87 Difference]: Start difference. First operand 302 states and 372 transitions. Second operand has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-02-24 03:11:43,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:11:43,620 INFO L93 Difference]: Finished difference Result 604 states and 748 transitions. [2022-02-24 03:11:43,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-24 03:11:43,621 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Word has length 573 [2022-02-24 03:11:43,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:11:43,623 INFO L225 Difference]: With dead ends: 604 [2022-02-24 03:11:43,623 INFO L226 Difference]: Without dead ends: 593 [2022-02-24 03:11:43,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2486 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=639, Invalid=20241, Unknown=0, NotChecked=0, Total=20880 [2022-02-24 03:11:43,624 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 637 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 46216 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 46980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 46216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:11:43,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 453 Invalid, 46980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [764 Valid, 46216 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2022-02-24 03:11:43,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-02-24 03:11:43,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 306. [2022-02-24 03:11:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 228 states have (on average 1.0087719298245614) internal successors, (230), 228 states have internal predecessors, (230), 74 states have call successors, (74), 4 states have call predecessors, (74), 3 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-02-24 03:11:43,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 377 transitions. [2022-02-24 03:11:43,825 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 377 transitions. Word has length 573 [2022-02-24 03:11:43,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:11:43,825 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 377 transitions. [2022-02-24 03:11:43,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-02-24 03:11:43,826 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 377 transitions. [2022-02-24 03:11:43,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-02-24 03:11:43,828 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:11:43,828 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:11:43,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-24 03:11:43,828 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:11:43,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:11:43,829 INFO L85 PathProgramCache]: Analyzing trace with hash -502789562, now seen corresponding path program 71 times [2022-02-24 03:11:43,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:11:43,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833128313] [2022-02-24 03:11:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:11:43,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:11:43,833 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:11:43,834 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:11:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:11:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:11:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:11:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:11:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:11:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:11:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:11:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:11:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:11:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:11:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:11:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:11:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:11:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:11:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:11:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:11:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:11:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:11:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:11:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:11:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:11:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:11:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:11:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:11:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:11:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:11:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:11:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:11:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:11:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:11:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:11:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:11:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:11:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:11:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:11:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:11:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:11:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:11:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:11:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:11:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:11:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:11:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:11:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:11:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:11:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:11:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:11:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:11:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:11:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:11:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:11:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:11:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:11:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:11:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:11:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:11:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:11:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:11:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:11:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:11:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:11:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:11:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:11:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:11:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:11:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:11:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:11:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:11:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:11:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:11:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:11:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:11:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:11:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2022-02-24 03:11:45,952 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:11:45,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833128313] [2022-02-24 03:11:45,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [833128313] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:11:45,952 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:11:45,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [] total 75 [2022-02-24 03:11:45,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198031469] [2022-02-24 03:11:45,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:11:45,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-02-24 03:11:45,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:11:45,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-02-24 03:11:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=5332, Unknown=0, NotChecked=0, Total=5550 [2022-02-24 03:11:45,954 INFO L87 Difference]: Start difference. First operand 306 states and 377 transitions. Second operand has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-02-24 03:12:09,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:12:09,634 INFO L93 Difference]: Finished difference Result 612 states and 758 transitions. [2022-02-24 03:12:09,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-24 03:12:09,635 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Word has length 581 [2022-02-24 03:12:09,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:12:09,643 INFO L225 Difference]: With dead ends: 612 [2022-02-24 03:12:09,643 INFO L226 Difference]: Without dead ends: 601 [2022-02-24 03:12:09,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2557 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=648, Invalid=20814, Unknown=0, NotChecked=0, Total=21462 [2022-02-24 03:12:09,645 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 643 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 47743 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 48515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 47743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-02-24 03:12:09,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 466 Invalid, 48515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [772 Valid, 47743 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2022-02-24 03:12:09,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-02-24 03:12:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 310. [2022-02-24 03:12:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 231 states have (on average 1.0086580086580086) internal successors, (233), 231 states have internal predecessors, (233), 75 states have call successors, (75), 4 states have call predecessors, (75), 3 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-02-24 03:12:09,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 382 transitions. [2022-02-24 03:12:09,949 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 382 transitions. Word has length 581 [2022-02-24 03:12:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:12:09,949 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 382 transitions. [2022-02-24 03:12:09,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-02-24 03:12:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 382 transitions. [2022-02-24 03:12:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2022-02-24 03:12:09,953 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:12:09,953 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:12:09,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-24 03:12:09,953 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:12:09,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:12:09,953 INFO L85 PathProgramCache]: Analyzing trace with hash -247159647, now seen corresponding path program 72 times [2022-02-24 03:12:09,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:12:09,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605257936] [2022-02-24 03:12:09,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:12:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:12:09,960 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:12:09,960 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:12:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:12:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:12:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:12:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:12:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:12:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:12:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:12:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:12:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:12:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:12:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:12:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:12:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:12:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:12:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:12:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:12:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:12:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:12:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:12:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:12:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:12:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:12:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:12:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:12:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:12:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:12:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:12:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:12:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:12:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:12:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:12:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:12:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:12:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:12:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:12:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:12:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:12:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:12:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:12:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:12:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:12:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:12:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:12:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:12:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:12:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:12:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:12:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:12:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:12:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:12:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:12:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:12:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:12:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:12:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:12:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:12:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:12:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:12:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:12:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:12:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:12:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:12:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:12:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:12:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:12:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:12:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:12:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:12:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:12:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:12:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:12:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:12:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:12:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2022-02-24 03:12:12,195 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:12:12,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605257936] [2022-02-24 03:12:12,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1605257936] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:12:12,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:12:12,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-24 03:12:12,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891677317] [2022-02-24 03:12:12,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:12:12,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-24 03:12:12,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:12:12,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-24 03:12:12,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=5479, Unknown=0, NotChecked=0, Total=5700 [2022-02-24 03:12:12,197 INFO L87 Difference]: Start difference. First operand 310 states and 382 transitions. Second operand has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-02-24 03:12:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:12:38,863 INFO L93 Difference]: Finished difference Result 620 states and 768 transitions. [2022-02-24 03:12:38,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-24 03:12:38,863 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Word has length 589 [2022-02-24 03:12:38,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:12:38,865 INFO L225 Difference]: With dead ends: 620 [2022-02-24 03:12:38,865 INFO L226 Difference]: Without dead ends: 609 [2022-02-24 03:12:38,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2629 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=657, Invalid=21395, Unknown=0, NotChecked=0, Total=22052 [2022-02-24 03:12:38,867 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 601 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 53014 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 53746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 53014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:12:38,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 599 Invalid, 53746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [732 Valid, 53014 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2022-02-24 03:12:38,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-02-24 03:12:39,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 314. [2022-02-24 03:12:39,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 234 states have (on average 1.0085470085470085) internal successors, (236), 234 states have internal predecessors, (236), 76 states have call successors, (76), 4 states have call predecessors, (76), 3 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-02-24 03:12:39,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 387 transitions. [2022-02-24 03:12:39,059 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 387 transitions. Word has length 589 [2022-02-24 03:12:39,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:12:39,059 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 387 transitions. [2022-02-24 03:12:39,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-02-24 03:12:39,060 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 387 transitions. [2022-02-24 03:12:39,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-02-24 03:12:39,062 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:12:39,062 INFO L514 BasicCegarLoop]: trace histogram [73, 73, 73, 73, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:12:39,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-24 03:12:39,062 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:12:39,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:12:39,063 INFO L85 PathProgramCache]: Analyzing trace with hash -476400644, now seen corresponding path program 73 times [2022-02-24 03:12:39,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:12:39,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893714986] [2022-02-24 03:12:39,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:12:39,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:12:39,076 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:12:39,076 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:12:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:12:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:12:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:12:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:12:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:12:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:12:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:12:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:12:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:12:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:12:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:12:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:12:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:12:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:12:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:12:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:12:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:12:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:12:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:12:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:12:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:12:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:12:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:12:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:12:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:12:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:12:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:12:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:12:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:12:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:12:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:12:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:12:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:12:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:12:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:12:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:12:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:12:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:12:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:12:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:12:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:12:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:12:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:12:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:12:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:12:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:12:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:12:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:12:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:12:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:12:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:12:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:12:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:12:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:12:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:12:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:12:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:12:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:12:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:12:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:12:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:12:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:12:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:12:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:12:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:12:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:12:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:12:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:12:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:12:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:12:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:12:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:12:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:12:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 03:12:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:12:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2022-02-24 03:12:41,175 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:12:41,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893714986] [2022-02-24 03:12:41,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1893714986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:12:41,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:12:41,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2022-02-24 03:12:41,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686077933] [2022-02-24 03:12:41,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:12:41,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-24 03:12:41,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:12:41,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-24 03:12:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=5628, Unknown=0, NotChecked=0, Total=5852 [2022-02-24 03:12:41,178 INFO L87 Difference]: Start difference. First operand 314 states and 387 transitions. Second operand has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-02-24 03:13:04,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:13:04,374 INFO L93 Difference]: Finished difference Result 628 states and 778 transitions. [2022-02-24 03:13:04,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-24 03:13:04,375 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Word has length 597 [2022-02-24 03:13:04,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:13:04,379 INFO L225 Difference]: With dead ends: 628 [2022-02-24 03:13:04,380 INFO L226 Difference]: Without dead ends: 617 [2022-02-24 03:13:04,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2702 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=666, Invalid=21984, Unknown=0, NotChecked=0, Total=22650 [2022-02-24 03:13:04,381 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 731 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 44903 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 45767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 44903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-02-24 03:13:04,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 302 Invalid, 45767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [864 Valid, 44903 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-02-24 03:13:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-02-24 03:13:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 318. [2022-02-24 03:13:04,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 237 states have internal predecessors, (239), 77 states have call successors, (77), 4 states have call predecessors, (77), 3 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-02-24 03:13:04,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 392 transitions. [2022-02-24 03:13:04,637 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 392 transitions. Word has length 597 [2022-02-24 03:13:04,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:13:04,637 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 392 transitions. [2022-02-24 03:13:04,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-02-24 03:13:04,637 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 392 transitions. [2022-02-24 03:13:04,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-02-24 03:13:04,641 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:13:04,641 INFO L514 BasicCegarLoop]: trace histogram [74, 74, 74, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:13:04,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-24 03:13:04,641 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:13:04,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:13:04,641 INFO L85 PathProgramCache]: Analyzing trace with hash -691718057, now seen corresponding path program 74 times [2022-02-24 03:13:04,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:13:04,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728887147] [2022-02-24 03:13:04,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:13:04,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:13:04,648 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:13:04,648 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:13:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:13:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:13:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:13:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:13:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:13:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:13:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:13:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:13:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:13:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:13:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:13:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:13:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:13:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:13:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:13:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:13:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:13:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:13:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:13:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:13:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:13:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:13:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:13:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:13:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:13:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:13:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:13:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:13:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:13:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:13:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:13:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:13:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:13:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:13:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:13:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:13:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:13:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:13:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:13:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:13:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:13:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:13:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:13:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:13:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:13:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:13:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:13:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:13:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:13:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:13:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:13:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:13:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:13:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:13:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:13:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:13:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:13:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:13:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:13:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:13:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:13:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:13:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:13:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:13:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:13:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:13:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:13:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:13:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:13:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:13:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:13:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:13:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:13:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 03:13:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-24 03:13:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2022-02-24 03:13:07,641 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:13:07,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728887147] [2022-02-24 03:13:07,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [728887147] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:13:07,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:13:07,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-24 03:13:07,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927513584] [2022-02-24 03:13:07,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:13:07,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-24 03:13:07,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:13:07,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-24 03:13:07,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=5779, Unknown=0, NotChecked=0, Total=6006 [2022-02-24 03:13:07,644 INFO L87 Difference]: Start difference. First operand 318 states and 392 transitions. Second operand has 78 states, 78 states have (on average 3.0) internal successors, (234), 77 states have internal predecessors, (234), 76 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-02-24 03:13:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:13:33,947 INFO L93 Difference]: Finished difference Result 636 states and 788 transitions. [2022-02-24 03:13:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-24 03:13:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 3.0) internal successors, (234), 77 states have internal predecessors, (234), 76 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) Word has length 605 [2022-02-24 03:13:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:13:33,954 INFO L225 Difference]: With dead ends: 636 [2022-02-24 03:13:33,955 INFO L226 Difference]: Without dead ends: 625 [2022-02-24 03:13:33,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2776 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=675, Invalid=22581, Unknown=0, NotChecked=0, Total=23256 [2022-02-24 03:13:33,956 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 647 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 53581 mSolverCounterSat, 782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 54363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 782 IncrementalHoareTripleChecker+Valid, 53581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-02-24 03:13:33,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 540 Invalid, 54363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [782 Valid, 53581 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2022-02-24 03:13:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-02-24 03:13:34,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 322. [2022-02-24 03:13:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 240 states have (on average 1.0083333333333333) internal successors, (242), 240 states have internal predecessors, (242), 78 states have call successors, (78), 4 states have call predecessors, (78), 3 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-02-24 03:13:34,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 397 transitions. [2022-02-24 03:13:34,226 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 397 transitions. Word has length 605 [2022-02-24 03:13:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:13:34,226 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 397 transitions. [2022-02-24 03:13:34,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.0) internal successors, (234), 77 states have internal predecessors, (234), 76 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-02-24 03:13:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 397 transitions. [2022-02-24 03:13:34,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2022-02-24 03:13:34,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:13:34,229 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 75, 75, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:13:34,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-24 03:13:34,229 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:13:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:13:34,230 INFO L85 PathProgramCache]: Analyzing trace with hash -41995854, now seen corresponding path program 75 times [2022-02-24 03:13:34,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:13:34,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124326766] [2022-02-24 03:13:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:13:34,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:13:34,240 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:13:34,240 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:13:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:13:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:13:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:13:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:13:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:13:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:13:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:13:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:13:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:13:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:13:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:13:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:13:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:13:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:13:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:13:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:13:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:13:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:13:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:13:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:13:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:13:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:13:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:13:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:13:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:13:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:13:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:13:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:13:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:13:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:13:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:13:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:13:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:13:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:13:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:13:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:13:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:13:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:13:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:13:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:13:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:13:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:13:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:13:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:13:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:13:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:13:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:13:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:13:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:13:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:13:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:13:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:13:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:13:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:13:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:13:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:13:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:13:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:13:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:13:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:13:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:13:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:13:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:13:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:13:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:13:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:13:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:13:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:13:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:13:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:13:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:13:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:13:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:13:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 03:13:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-24 03:13:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-24 03:13:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:13:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2022-02-24 03:13:36,557 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:13:36,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124326766] [2022-02-24 03:13:36,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1124326766] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:13:36,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:13:36,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [79] imperfect sequences [] total 79 [2022-02-24 03:13:36,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641218152] [2022-02-24 03:13:36,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:13:36,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-02-24 03:13:36,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:13:36,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-02-24 03:13:36,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=5932, Unknown=0, NotChecked=0, Total=6162 [2022-02-24 03:13:36,560 INFO L87 Difference]: Start difference. First operand 322 states and 397 transitions. Second operand has 79 states, 79 states have (on average 3.0) internal successors, (237), 78 states have internal predecessors, (237), 77 states have call successors, (78), 3 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-02-24 03:14:03,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:14:03,192 INFO L93 Difference]: Finished difference Result 644 states and 798 transitions. [2022-02-24 03:14:03,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-24 03:14:03,193 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 3.0) internal successors, (237), 78 states have internal predecessors, (237), 77 states have call successors, (78), 3 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) Word has length 613 [2022-02-24 03:14:03,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:14:03,195 INFO L225 Difference]: With dead ends: 644 [2022-02-24 03:14:03,195 INFO L226 Difference]: Without dead ends: 633 [2022-02-24 03:14:03,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2851 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=684, Invalid=23186, Unknown=0, NotChecked=0, Total=23870 [2022-02-24 03:14:03,197 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 653 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 55218 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 56008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 55218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-02-24 03:14:03,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [655 Valid, 553 Invalid, 56008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [790 Valid, 55218 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2022-02-24 03:14:03,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-02-24 03:14:03,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 326. [2022-02-24 03:14:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 243 states have (on average 1.008230452674897) internal successors, (245), 243 states have internal predecessors, (245), 79 states have call successors, (79), 4 states have call predecessors, (79), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-02-24 03:14:03,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 402 transitions. [2022-02-24 03:14:03,430 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 402 transitions. Word has length 613 [2022-02-24 03:14:03,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:14:03,431 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 402 transitions. [2022-02-24 03:14:03,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.0) internal successors, (237), 78 states have internal predecessors, (237), 77 states have call successors, (78), 3 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-02-24 03:14:03,431 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 402 transitions. [2022-02-24 03:14:03,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2022-02-24 03:14:03,433 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:14:03,434 INFO L514 BasicCegarLoop]: trace histogram [76, 76, 76, 76, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:14:03,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-24 03:14:03,434 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:14:03,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:14:03,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1618763763, now seen corresponding path program 76 times [2022-02-24 03:14:03,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:14:03,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111640220] [2022-02-24 03:14:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:14:03,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:14:03,440 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:14:03,440 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:14:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:14:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:14:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:14:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:14:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:14:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:14:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:14:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:14:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:14:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:14:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:14:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:14:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:14:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:14:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:14:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:14:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:14:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:14:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:14:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:14:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:14:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:14:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:14:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:14:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:14:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:14:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:14:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:14:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:14:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:14:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:14:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:14:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:14:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:14:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:14:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:14:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:14:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:14:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:14:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:14:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:14:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:14:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:14:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:14:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:14:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:14:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:14:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:14:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:14:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:14:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:14:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:14:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:14:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:14:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:14:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:14:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:14:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:14:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:14:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:14:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:14:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:14:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:14:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:14:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:14:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:14:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:14:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:14:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:14:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:14:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:14:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:14:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:14:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 03:14:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-24 03:14:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-24 03:14:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-02-24 03:14:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2022-02-24 03:14:06,142 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:14:06,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111640220] [2022-02-24 03:14:06,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [111640220] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:14:06,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:14:06,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-02-24 03:14:06,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803766279] [2022-02-24 03:14:06,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:14:06,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-24 03:14:06,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:14:06,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-24 03:14:06,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=6087, Unknown=0, NotChecked=0, Total=6320 [2022-02-24 03:14:06,144 INFO L87 Difference]: Start difference. First operand 326 states and 402 transitions. Second operand has 80 states, 80 states have (on average 3.0) internal successors, (240), 79 states have internal predecessors, (240), 78 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-02-24 03:14:33,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:14:33,401 INFO L93 Difference]: Finished difference Result 652 states and 808 transitions. [2022-02-24 03:14:33,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-24 03:14:33,401 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 3.0) internal successors, (240), 79 states have internal predecessors, (240), 78 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) Word has length 621 [2022-02-24 03:14:33,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:14:33,403 INFO L225 Difference]: With dead ends: 652 [2022-02-24 03:14:33,403 INFO L226 Difference]: Without dead ends: 641 [2022-02-24 03:14:33,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2927 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=693, Invalid=23799, Unknown=0, NotChecked=0, Total=24492 [2022-02-24 03:14:33,404 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 691 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 54271 mSolverCounterSat, 830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 55101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 54271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-02-24 03:14:33,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [693 Valid, 486 Invalid, 55101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [830 Valid, 54271 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2022-02-24 03:14:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-02-24 03:14:33,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 330. [2022-02-24 03:14:33,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 246 states have (on average 1.008130081300813) internal successors, (248), 246 states have internal predecessors, (248), 80 states have call successors, (80), 4 states have call predecessors, (80), 3 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-02-24 03:14:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 407 transitions. [2022-02-24 03:14:33,618 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 407 transitions. Word has length 621 [2022-02-24 03:14:33,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:14:33,618 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 407 transitions. [2022-02-24 03:14:33,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.0) internal successors, (240), 79 states have internal predecessors, (240), 78 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-02-24 03:14:33,619 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 407 transitions. [2022-02-24 03:14:33,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2022-02-24 03:14:33,622 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:14:33,622 INFO L514 BasicCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:14:33,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-24 03:14:33,622 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:14:33,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:14:33,623 INFO L85 PathProgramCache]: Analyzing trace with hash 428704616, now seen corresponding path program 77 times [2022-02-24 03:14:33,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:14:33,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813160193] [2022-02-24 03:14:33,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:14:33,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:14:33,630 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:14:33,630 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:14:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:14:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:14:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:14:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:14:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:14:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:14:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:14:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:14:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:14:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:14:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:14:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:14:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:14:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:14:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:14:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:14:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:14:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:14:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:14:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:14:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:14:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:14:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:14:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:14:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:14:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:14:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:14:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:14:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:14:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:14:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:14:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:14:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:14:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:14:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:14:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:14:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:14:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:14:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:14:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:14:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:14:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:14:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:14:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:14:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:14:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:14:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:14:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:14:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:14:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:14:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:14:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:14:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:14:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:14:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:14:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:14:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:14:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:14:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:14:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:14:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:14:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:14:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:14:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:14:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:14:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:14:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:14:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:14:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:14:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:14:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:14:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:14:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:14:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 03:14:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-24 03:14:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-24 03:14:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-02-24 03:14:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-02-24 03:14:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:14:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2022-02-24 03:14:36,034 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:14:36,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813160193] [2022-02-24 03:14:36,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [813160193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:14:36,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:14:36,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [81] imperfect sequences [] total 81 [2022-02-24 03:14:36,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489323531] [2022-02-24 03:14:36,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:14:36,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-02-24 03:14:36,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:14:36,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-02-24 03:14:36,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=6244, Unknown=0, NotChecked=0, Total=6480 [2022-02-24 03:14:36,037 INFO L87 Difference]: Start difference. First operand 330 states and 407 transitions. Second operand has 81 states, 81 states have (on average 3.0) internal successors, (243), 80 states have internal predecessors, (243), 79 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-02-24 03:15:02,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:15:02,000 INFO L93 Difference]: Finished difference Result 660 states and 818 transitions. [2022-02-24 03:15:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-24 03:15:02,001 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 3.0) internal successors, (243), 80 states have internal predecessors, (243), 79 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Word has length 629 [2022-02-24 03:15:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:15:02,003 INFO L225 Difference]: With dead ends: 660 [2022-02-24 03:15:02,003 INFO L226 Difference]: Without dead ends: 649 [2022-02-24 03:15:02,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3004 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=702, Invalid=24420, Unknown=0, NotChecked=0, Total=25122 [2022-02-24 03:15:02,004 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 787 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 48499 mSolverCounterSat, 928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 49427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 928 IncrementalHoareTripleChecker+Valid, 48499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-02-24 03:15:02,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [789 Valid, 274 Invalid, 49427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [928 Valid, 48499 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2022-02-24 03:15:02,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-02-24 03:15:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 334. [2022-02-24 03:15:02,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 249 states have (on average 1.0080321285140563) internal successors, (251), 249 states have internal predecessors, (251), 81 states have call successors, (81), 4 states have call predecessors, (81), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-02-24 03:15:02,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 412 transitions. [2022-02-24 03:15:02,280 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 412 transitions. Word has length 629 [2022-02-24 03:15:02,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:15:02,281 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 412 transitions. [2022-02-24 03:15:02,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 3.0) internal successors, (243), 80 states have internal predecessors, (243), 79 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-02-24 03:15:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 412 transitions. [2022-02-24 03:15:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2022-02-24 03:15:02,285 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:15:02,285 INFO L514 BasicCegarLoop]: trace histogram [78, 78, 78, 78, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:15:02,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-24 03:15:02,285 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:15:02,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:15:02,286 INFO L85 PathProgramCache]: Analyzing trace with hash -581444669, now seen corresponding path program 78 times [2022-02-24 03:15:02,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:15:02,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738965324] [2022-02-24 03:15:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:15:02,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:15:02,294 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:15:02,294 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:15:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:15:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:15:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:15:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:15:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:15:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:15:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:15:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:15:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:15:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:15:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:15:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:15:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:15:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:15:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:15:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:15:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:15:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:15:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:15:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:15:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:15:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:15:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:15:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:15:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:15:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:15:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:15:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:15:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:15:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:15:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:15:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:15:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:15:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:15:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:15:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:15:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:15:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:15:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:15:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:15:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:15:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:15:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:15:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:15:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:15:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:15:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:15:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:15:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:15:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:15:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:15:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:15:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:15:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:15:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:15:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:15:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:15:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:15:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:15:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:15:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:15:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:15:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:15:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:15:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:15:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:15:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:15:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:15:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:15:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:15:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:15:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:15:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:15:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 03:15:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-24 03:15:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-24 03:15:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-02-24 03:15:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-02-24 03:15:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-02-24 03:15:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2022-02-24 03:15:04,829 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:15:04,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738965324] [2022-02-24 03:15:04,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [738965324] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:15:04,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:15:04,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-02-24 03:15:04,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564716517] [2022-02-24 03:15:04,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:15:04,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-24 03:15:04,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:15:04,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-24 03:15:04,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=6403, Unknown=0, NotChecked=0, Total=6642 [2022-02-24 03:15:04,831 INFO L87 Difference]: Start difference. First operand 334 states and 412 transitions. Second operand has 82 states, 82 states have (on average 3.0) internal successors, (246), 81 states have internal predecessors, (246), 80 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-02-24 03:15:36,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:15:36,022 INFO L93 Difference]: Finished difference Result 668 states and 828 transitions. [2022-02-24 03:15:36,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-24 03:15:36,022 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 3.0) internal successors, (246), 81 states have internal predecessors, (246), 80 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Word has length 637 [2022-02-24 03:15:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:15:36,031 INFO L225 Difference]: With dead ends: 668 [2022-02-24 03:15:36,031 INFO L226 Difference]: Without dead ends: 657 [2022-02-24 03:15:36,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3082 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=711, Invalid=25049, Unknown=0, NotChecked=0, Total=25760 [2022-02-24 03:15:36,032 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 649 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 62110 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 62902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 62110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-02-24 03:15:36,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [651 Valid, 647 Invalid, 62902 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [792 Valid, 62110 Invalid, 0 Unknown, 0 Unchecked, 18.8s Time] [2022-02-24 03:15:36,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-02-24 03:15:36,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 338. [2022-02-24 03:15:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 252 states have (on average 1.007936507936508) internal successors, (254), 252 states have internal predecessors, (254), 82 states have call successors, (82), 4 states have call predecessors, (82), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-02-24 03:15:36,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 417 transitions. [2022-02-24 03:15:36,261 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 417 transitions. Word has length 637 [2022-02-24 03:15:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:15:36,262 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 417 transitions. [2022-02-24 03:15:36,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 3.0) internal successors, (246), 81 states have internal predecessors, (246), 80 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-02-24 03:15:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 417 transitions. [2022-02-24 03:15:36,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-02-24 03:15:36,269 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:15:36,269 INFO L514 BasicCegarLoop]: trace histogram [79, 79, 79, 79, 79, 79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:15:36,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-24 03:15:36,269 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:15:36,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:15:36,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1906157854, now seen corresponding path program 79 times [2022-02-24 03:15:36,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:15:36,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049477852] [2022-02-24 03:15:36,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:15:36,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:15:36,275 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:15:36,275 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:15:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:15:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:15:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:15:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:15:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:15:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:15:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:15:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:15:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:15:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:15:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:15:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:15:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:15:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:15:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:15:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:15:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:15:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:15:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:15:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:15:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:15:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:15:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:15:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:15:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:15:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:15:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:15:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:15:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:15:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:15:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:15:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:15:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:15:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:15:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:15:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:15:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:15:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:15:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:15:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:15:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:15:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:15:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:15:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:15:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:15:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:15:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:15:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:15:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:15:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:15:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:15:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:15:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:15:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:15:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:15:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:15:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:15:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:15:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:15:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:15:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:15:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:15:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:15:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:15:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:15:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:15:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:15:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:15:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:15:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:15:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:15:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:15:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:15:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 03:15:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-24 03:15:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-24 03:15:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-02-24 03:15:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-02-24 03:15:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-02-24 03:15:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-02-24 03:15:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:15:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2022-02-24 03:15:38,305 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:15:38,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049477852] [2022-02-24 03:15:38,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1049477852] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:15:38,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:15:38,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [83] imperfect sequences [] total 83 [2022-02-24 03:15:38,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122006804] [2022-02-24 03:15:38,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:15:38,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-02-24 03:15:38,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:15:38,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-02-24 03:15:38,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=6564, Unknown=0, NotChecked=0, Total=6806 [2022-02-24 03:15:38,307 INFO L87 Difference]: Start difference. First operand 338 states and 417 transitions. Second operand has 83 states, 83 states have (on average 3.0) internal successors, (249), 82 states have internal predecessors, (249), 81 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-02-24 03:16:07,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 03:16:07,042 INFO L93 Difference]: Finished difference Result 676 states and 838 transitions. [2022-02-24 03:16:07,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-24 03:16:07,042 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 3.0) internal successors, (249), 82 states have internal predecessors, (249), 81 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 645 [2022-02-24 03:16:07,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 03:16:07,044 INFO L225 Difference]: With dead ends: 676 [2022-02-24 03:16:07,044 INFO L226 Difference]: Without dead ends: 665 [2022-02-24 03:16:07,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3161 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=720, Invalid=25686, Unknown=0, NotChecked=0, Total=26406 [2022-02-24 03:16:07,046 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 753 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 55584 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 56482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 55584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-02-24 03:16:07,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 415 Invalid, 56482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [898 Valid, 55584 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2022-02-24 03:16:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-02-24 03:16:07,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 342. [2022-02-24 03:16:07,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 255 states have (on average 1.007843137254902) internal successors, (257), 255 states have internal predecessors, (257), 83 states have call successors, (83), 4 states have call predecessors, (83), 3 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2022-02-24 03:16:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 422 transitions. [2022-02-24 03:16:07,285 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 422 transitions. Word has length 645 [2022-02-24 03:16:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 03:16:07,286 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 422 transitions. [2022-02-24 03:16:07,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 3.0) internal successors, (249), 82 states have internal predecessors, (249), 81 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-02-24 03:16:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 422 transitions. [2022-02-24 03:16:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2022-02-24 03:16:07,289 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 03:16:07,289 INFO L514 BasicCegarLoop]: trace histogram [80, 80, 80, 80, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 03:16:07,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-24 03:16:07,289 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 03:16:07,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 03:16:07,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1914301305, now seen corresponding path program 80 times [2022-02-24 03:16:07,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 03:16:07,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460527467] [2022-02-24 03:16:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 03:16:07,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 03:16:07,295 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 03:16:07,295 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 03:16:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 03:16:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 03:16:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 03:16:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 03:16:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 03:16:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 03:16:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 03:16:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 03:16:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 03:16:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 03:16:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 03:16:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 03:16:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 03:16:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 03:16:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 03:16:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 03:16:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 03:16:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 03:16:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 03:16:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 03:16:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 03:16:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 03:16:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 03:16:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 03:16:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 03:16:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 03:16:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 03:16:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 03:16:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 03:16:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 03:16:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 03:16:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 03:16:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 03:16:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 03:16:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 03:16:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 03:16:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 03:16:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 03:16:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 03:16:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 03:16:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 03:16:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 03:16:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 03:16:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 03:16:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 03:16:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 03:16:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 03:16:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 03:16:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 03:16:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 03:16:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 03:16:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 03:16:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 03:16:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 03:16:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 03:16:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 03:16:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 03:16:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 03:16:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 03:16:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 03:16:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 03:16:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 03:16:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 03:16:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 03:16:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 03:16:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 03:16:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 03:16:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 03:16:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 03:16:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 03:16:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 03:16:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 03:16:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 03:16:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 03:16:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-24 03:16:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-24 03:16:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-02-24 03:16:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-02-24 03:16:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-02-24 03:16:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-02-24 03:16:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-02-24 03:16:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 03:16:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2022-02-24 03:16:10,272 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 03:16:10,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460527467] [2022-02-24 03:16:10,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [460527467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 03:16:10,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 03:16:10,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-02-24 03:16:10,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990771208] [2022-02-24 03:16:10,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 03:16:10,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-24 03:16:10,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 03:16:10,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-24 03:16:10,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=6727, Unknown=0, NotChecked=0, Total=6972 [2022-02-24 03:16:10,275 INFO L87 Difference]: Start difference. First operand 342 states and 422 transitions. Second operand has 84 states, 84 states have (on average 3.0) internal successors, (252), 83 states have internal predecessors, (252), 82 states have call successors, (83), 3 states have call predecessors, (83), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81)