/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:35:44,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:35:44,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:35:44,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 01:35:44,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:35:44,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:35:44,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:35:44,744 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:35:44,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:35:44,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:35:44,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:35:44,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:35:44,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:35:44,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:35:44,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:35:44,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:35:44,789 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:35:44,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:35:44,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:35:44,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:35:44,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:35:44,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:35:44,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:35:44,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:35:44,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:35:44,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:35:44,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:35:44,792 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:35:44,792 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:35:44,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:35:44,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:35:45,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:35:45,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:35:45,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:35:45,098 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:35:45,098 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:35:45,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-01-10 01:35:45,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4418ea78e/f7e6d9baabf04c7981b39fa888c81072/FLAG575ece0e4 [2022-01-10 01:35:45,538 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:35:45,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-01-10 01:35:45,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4418ea78e/f7e6d9baabf04c7981b39fa888c81072/FLAG575ece0e4 [2022-01-10 01:35:45,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4418ea78e/f7e6d9baabf04c7981b39fa888c81072 [2022-01-10 01:35:45,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:35:45,567 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:35:45,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:35:45,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:35:45,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:35:45,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420010d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45, skipping insertion in model container [2022-01-10 01:35:45,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:35:45,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:35:45,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7399,7412] [2022-01-10 01:35:45,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:35:45,798 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:35:45,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7399,7412] [2022-01-10 01:35:45,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:35:45,862 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:35:45,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45 WrapperNode [2022-01-10 01:35:45,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:35:45,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:35:45,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:35:45,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:35:45,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,910 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 619 [2022-01-10 01:35:45,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:35:45,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:35:45,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:35:45,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:35:45,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:35:45,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:35:45,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:35:45,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:35:45,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (1/1) ... [2022-01-10 01:35:45,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:35:45,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:35:46,009 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) [2022-01-10 01:35:46,015 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 [2022-01-10 01:35:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:35:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:35:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:35:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:35:46,161 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:35:46,162 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:35:46,556 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:35:46,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:35:46,562 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:35:46,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:46 BoogieIcfgContainer [2022-01-10 01:35:46,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:35:46,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:35:46,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:35:46,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:35:46,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:35:45" (1/3) ... [2022-01-10 01:35:46,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c16322a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:35:46, skipping insertion in model container [2022-01-10 01:35:46,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:45" (2/3) ... [2022-01-10 01:35:46,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c16322a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:35:46, skipping insertion in model container [2022-01-10 01:35:46,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:46" (3/3) ... [2022-01-10 01:35:46,570 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-01-10 01:35:46,573 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:35:46,573 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:35:46,630 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:35:46,634 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=FAST_UPR [2022-01-10 01:35:46,635 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:35:46,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 163 states have (on average 1.6993865030674846) internal successors, (277), 164 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 01:35:46,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:46,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:46,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:46,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:46,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2011282842, now seen corresponding path program 1 times [2022-01-10 01:35:46,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:46,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306106621] [2022-01-10 01:35:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:46,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:46,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:46,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306106621] [2022-01-10 01:35:46,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306106621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:46,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:46,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:35:46,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792465371] [2022-01-10 01:35:46,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:46,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:35:46,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:46,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:35:46,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:47,001 INFO L87 Difference]: Start difference. First operand has 165 states, 163 states have (on average 1.6993865030674846) internal successors, (277), 164 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:47,096 INFO L93 Difference]: Finished difference Result 391 states and 633 transitions. [2022-01-10 01:35:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:35:47,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-10 01:35:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:47,116 INFO L225 Difference]: With dead ends: 391 [2022-01-10 01:35:47,116 INFO L226 Difference]: Without dead ends: 264 [2022-01-10 01:35:47,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:47,120 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 205 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:47,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 592 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:35:47,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-01-10 01:35:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2022-01-10 01:35:47,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 1.5019157088122606) internal successors, (392), 261 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 392 transitions. [2022-01-10 01:35:47,178 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 392 transitions. Word has length 74 [2022-01-10 01:35:47,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:47,178 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 392 transitions. [2022-01-10 01:35:47,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,178 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 392 transitions. [2022-01-10 01:35:47,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 01:35:47,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:47,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:47,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:35:47,181 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:47,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:47,182 INFO L85 PathProgramCache]: Analyzing trace with hash -141824057, now seen corresponding path program 1 times [2022-01-10 01:35:47,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:47,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851643102] [2022-01-10 01:35:47,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:47,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:47,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:47,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851643102] [2022-01-10 01:35:47,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851643102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:47,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:47,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:35:47,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596371963] [2022-01-10 01:35:47,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:47,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:35:47,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:47,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:35:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:47,303 INFO L87 Difference]: Start difference. First operand 262 states and 392 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:47,403 INFO L93 Difference]: Finished difference Result 666 states and 1036 transitions. [2022-01-10 01:35:47,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:35:47,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-10 01:35:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:47,409 INFO L225 Difference]: With dead ends: 666 [2022-01-10 01:35:47,409 INFO L226 Difference]: Without dead ends: 448 [2022-01-10 01:35:47,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:47,415 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 166 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:47,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 520 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:35:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-01-10 01:35:47,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2022-01-10 01:35:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.5393258426966292) internal successors, (685), 445 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 685 transitions. [2022-01-10 01:35:47,469 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 685 transitions. Word has length 75 [2022-01-10 01:35:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:47,471 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 685 transitions. [2022-01-10 01:35:47,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,473 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 685 transitions. [2022-01-10 01:35:47,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 01:35:47,475 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:47,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:47,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:35:47,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:47,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:47,477 INFO L85 PathProgramCache]: Analyzing trace with hash 890430339, now seen corresponding path program 1 times [2022-01-10 01:35:47,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:47,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226880170] [2022-01-10 01:35:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:47,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:47,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:47,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:47,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226880170] [2022-01-10 01:35:47,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226880170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:47,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:47,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:35:47,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574942674] [2022-01-10 01:35:47,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:47,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:35:47,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:47,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:35:47,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:47,588 INFO L87 Difference]: Start difference. First operand 446 states and 685 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:47,640 INFO L93 Difference]: Finished difference Result 1186 states and 1863 transitions. [2022-01-10 01:35:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:35:47,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-10 01:35:47,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:47,644 INFO L225 Difference]: With dead ends: 1186 [2022-01-10 01:35:47,645 INFO L226 Difference]: Without dead ends: 784 [2022-01-10 01:35:47,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:47,651 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:47,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 505 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:35:47,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2022-01-10 01:35:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 782. [2022-01-10 01:35:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 781 states have (on average 1.558258642765685) internal successors, (1217), 781 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1217 transitions. [2022-01-10 01:35:47,702 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1217 transitions. Word has length 76 [2022-01-10 01:35:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:47,703 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1217 transitions. [2022-01-10 01:35:47,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1217 transitions. [2022-01-10 01:35:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 01:35:47,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:47,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:47,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:35:47,708 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:47,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:47,709 INFO L85 PathProgramCache]: Analyzing trace with hash -806203398, now seen corresponding path program 1 times [2022-01-10 01:35:47,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:47,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039362102] [2022-01-10 01:35:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:47,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:47,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:47,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039362102] [2022-01-10 01:35:47,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039362102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:47,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:47,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:35:47,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148458860] [2022-01-10 01:35:47,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:47,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:35:47,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:47,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:35:47,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:47,804 INFO L87 Difference]: Start difference. First operand 782 states and 1217 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:47,866 INFO L93 Difference]: Finished difference Result 2130 states and 3355 transitions. [2022-01-10 01:35:47,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:35:47,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-10 01:35:47,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:47,873 INFO L225 Difference]: With dead ends: 2130 [2022-01-10 01:35:47,874 INFO L226 Difference]: Without dead ends: 1392 [2022-01-10 01:35:47,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:47,880 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 156 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:47,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 490 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:35:47,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-01-10 01:35:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2022-01-10 01:35:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 1.564434845212383) internal successors, (2173), 1389 states have internal predecessors, (2173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2173 transitions. [2022-01-10 01:35:47,940 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2173 transitions. Word has length 77 [2022-01-10 01:35:47,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:47,941 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 2173 transitions. [2022-01-10 01:35:47,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:47,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2173 transitions. [2022-01-10 01:35:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 01:35:47,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:47,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:47,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:35:47,942 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:47,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:47,945 INFO L85 PathProgramCache]: Analyzing trace with hash -904090240, now seen corresponding path program 1 times [2022-01-10 01:35:47,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:47,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659792271] [2022-01-10 01:35:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:47,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:48,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:48,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659792271] [2022-01-10 01:35:48,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659792271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:48,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:48,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:35:48,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998818028] [2022-01-10 01:35:48,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:48,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:35:48,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:48,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:35:48,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:48,023 INFO L87 Difference]: Start difference. First operand 1390 states and 2173 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:48,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:48,175 INFO L93 Difference]: Finished difference Result 3826 states and 6015 transitions. [2022-01-10 01:35:48,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:35:48,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-10 01:35:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:48,184 INFO L225 Difference]: With dead ends: 3826 [2022-01-10 01:35:48,185 INFO L226 Difference]: Without dead ends: 2480 [2022-01-10 01:35:48,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:48,187 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 151 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:48,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 475 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:35:48,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-01-10 01:35:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2478. [2022-01-10 01:35:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2478 states, 2477 states have (on average 1.5619701251513929) internal successors, (3869), 2477 states have internal predecessors, (3869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 3869 transitions. [2022-01-10 01:35:48,275 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 3869 transitions. Word has length 78 [2022-01-10 01:35:48,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:48,276 INFO L470 AbstractCegarLoop]: Abstraction has 2478 states and 3869 transitions. [2022-01-10 01:35:48,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 3869 transitions. [2022-01-10 01:35:48,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 01:35:48,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:48,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:48,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:35:48,277 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:48,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:48,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1797609537, now seen corresponding path program 1 times [2022-01-10 01:35:48,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:48,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138376473] [2022-01-10 01:35:48,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:48,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:48,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:48,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138376473] [2022-01-10 01:35:48,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138376473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:48,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:48,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:35:48,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796895648] [2022-01-10 01:35:48,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:48,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:35:48,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:48,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:35:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:35:48,383 INFO L87 Difference]: Start difference. First operand 2478 states and 3869 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:49,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:49,303 INFO L93 Difference]: Finished difference Result 19516 states and 30644 transitions. [2022-01-10 01:35:49,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 01:35:49,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 01:35:49,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:49,360 INFO L225 Difference]: With dead ends: 19516 [2022-01-10 01:35:49,360 INFO L226 Difference]: Without dead ends: 17082 [2022-01-10 01:35:49,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 01:35:49,369 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 2601 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 3272 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:49,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2601 Valid, 3272 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:35:49,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17082 states. [2022-01-10 01:35:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17082 to 4910. [2022-01-10 01:35:49,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4910 states, 4909 states have (on average 1.5540843348950906) internal successors, (7629), 4909 states have internal predecessors, (7629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4910 states to 4910 states and 7629 transitions. [2022-01-10 01:35:49,873 INFO L78 Accepts]: Start accepts. Automaton has 4910 states and 7629 transitions. Word has length 79 [2022-01-10 01:35:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:49,874 INFO L470 AbstractCegarLoop]: Abstraction has 4910 states and 7629 transitions. [2022-01-10 01:35:49,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:49,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4910 states and 7629 transitions. [2022-01-10 01:35:49,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 01:35:49,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:49,875 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:49,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:35:49,875 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:49,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:49,876 INFO L85 PathProgramCache]: Analyzing trace with hash -128135395, now seen corresponding path program 1 times [2022-01-10 01:35:49,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:49,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691282097] [2022-01-10 01:35:49,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:49,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:49,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:49,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691282097] [2022-01-10 01:35:49,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691282097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:49,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:49,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:35:49,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085767652] [2022-01-10 01:35:49,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:50,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:35:50,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:50,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:35:50,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:35:50,000 INFO L87 Difference]: Start difference. First operand 4910 states and 7629 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:52,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:52,404 INFO L93 Difference]: Finished difference Result 30106 states and 46547 transitions. [2022-01-10 01:35:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 01:35:52,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-10 01:35:52,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:52,463 INFO L225 Difference]: With dead ends: 30106 [2022-01-10 01:35:52,463 INFO L226 Difference]: Without dead ends: 25240 [2022-01-10 01:35:52,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:35:52,476 INFO L933 BasicCegarLoop]: 674 mSDtfsCounter, 1106 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:52,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1106 Valid, 1755 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:35:52,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25240 states. [2022-01-10 01:35:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25240 to 25230. [2022-01-10 01:35:54,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25230 states, 25229 states have (on average 1.54159895358516) internal successors, (38893), 25229 states have internal predecessors, (38893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:54,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25230 states to 25230 states and 38893 transitions. [2022-01-10 01:35:54,884 INFO L78 Accepts]: Start accepts. Automaton has 25230 states and 38893 transitions. Word has length 80 [2022-01-10 01:35:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:35:54,884 INFO L470 AbstractCegarLoop]: Abstraction has 25230 states and 38893 transitions. [2022-01-10 01:35:54,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:54,885 INFO L276 IsEmpty]: Start isEmpty. Operand 25230 states and 38893 transitions. [2022-01-10 01:35:54,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 01:35:54,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:35:54,886 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:35:54,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:35:54,886 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:35:54,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:35:54,887 INFO L85 PathProgramCache]: Analyzing trace with hash 750877787, now seen corresponding path program 1 times [2022-01-10 01:35:54,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:35:54,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008214238] [2022-01-10 01:35:54,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:35:54,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:35:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:35:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:35:54,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:35:54,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008214238] [2022-01-10 01:35:54,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008214238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:35:54,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:35:54,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:35:54,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274427699] [2022-01-10 01:35:54,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:35:54,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:35:54,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:35:54,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:35:54,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:54,921 INFO L87 Difference]: Start difference. First operand 25230 states and 38893 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:35:58,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:35:58,767 INFO L93 Difference]: Finished difference Result 69010 states and 105967 transitions. [2022-01-10 01:35:58,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:35:58,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 01:35:58,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:35:58,858 INFO L225 Difference]: With dead ends: 69010 [2022-01-10 01:35:58,858 INFO L226 Difference]: Without dead ends: 43824 [2022-01-10 01:35:58,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:35:58,893 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 173 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:35:58,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 560 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:35:58,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43824 states. [2022-01-10 01:36:03,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43824 to 43822. [2022-01-10 01:36:03,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43822 states, 43821 states have (on average 1.5228543392437417) internal successors, (66733), 43821 states have internal predecessors, (66733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:36:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43822 states to 43822 states and 66733 transitions. [2022-01-10 01:36:03,211 INFO L78 Accepts]: Start accepts. Automaton has 43822 states and 66733 transitions. Word has length 81 [2022-01-10 01:36:03,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:36:03,211 INFO L470 AbstractCegarLoop]: Abstraction has 43822 states and 66733 transitions. [2022-01-10 01:36:03,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:36:03,211 INFO L276 IsEmpty]: Start isEmpty. Operand 43822 states and 66733 transitions. [2022-01-10 01:36:03,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 01:36:03,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:36:03,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:36:03,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:36:03,213 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:36:03,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:36:03,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1315274732, now seen corresponding path program 1 times [2022-01-10 01:36:03,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:36:03,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504163209] [2022-01-10 01:36:03,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:36:03,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:36:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:36:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:36:03,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:36:03,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504163209] [2022-01-10 01:36:03,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504163209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:36:03,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:36:03,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:36:03,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738207126] [2022-01-10 01:36:03,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:36:03,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:36:03,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:36:03,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:36:03,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:36:03,260 INFO L87 Difference]: Start difference. First operand 43822 states and 66733 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:36:10,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:36:10,971 INFO L93 Difference]: Finished difference Result 125042 states and 190575 transitions. [2022-01-10 01:36:10,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:36:10,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 01:36:10,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:36:11,127 INFO L225 Difference]: With dead ends: 125042 [2022-01-10 01:36:11,128 INFO L226 Difference]: Without dead ends: 81264 [2022-01-10 01:36:11,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:36:11,300 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 1005 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:36:11,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1005 Valid, 260 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:36:11,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81264 states. [2022-01-10 01:36:19,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81264 to 81262. [2022-01-10 01:36:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81262 states, 81261 states have (on average 1.515868620863637) internal successors, (123181), 81261 states have internal predecessors, (123181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:36:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81262 states to 81262 states and 123181 transitions. [2022-01-10 01:36:19,666 INFO L78 Accepts]: Start accepts. Automaton has 81262 states and 123181 transitions. Word has length 82 [2022-01-10 01:36:19,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:36:19,666 INFO L470 AbstractCegarLoop]: Abstraction has 81262 states and 123181 transitions. [2022-01-10 01:36:19,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:36:19,667 INFO L276 IsEmpty]: Start isEmpty. Operand 81262 states and 123181 transitions. [2022-01-10 01:36:19,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 01:36:19,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:36:19,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:36:19,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:36:19,670 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:36:19,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:36:19,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1885691313, now seen corresponding path program 1 times [2022-01-10 01:36:19,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:36:19,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990611010] [2022-01-10 01:36:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:36:19,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:36:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:36:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:36:19,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:36:19,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990611010] [2022-01-10 01:36:19,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990611010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:36:19,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:36:19,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 01:36:19,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416669590] [2022-01-10 01:36:19,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:36:19,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:36:19,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:36:19,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:36:19,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:36:19,793 INFO L87 Difference]: Start difference. First operand 81262 states and 123181 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:36:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:36:35,479 INFO L93 Difference]: Finished difference Result 165296 states and 249134 transitions. [2022-01-10 01:36:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:36:35,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 01:36:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:36:35,765 INFO L225 Difference]: With dead ends: 165296 [2022-01-10 01:36:35,765 INFO L226 Difference]: Without dead ends: 165294 [2022-01-10 01:36:35,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:36:35,811 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 364 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:36:35,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1143 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:36:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165294 states. [2022-01-10 01:36:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165294 to 84078. [2022-01-10 01:36:45,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84078 states, 84077 states have (on average 1.4985905776847415) internal successors, (125997), 84077 states have internal predecessors, (125997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:36:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84078 states to 84078 states and 125997 transitions. [2022-01-10 01:36:45,789 INFO L78 Accepts]: Start accepts. Automaton has 84078 states and 125997 transitions. Word has length 82 [2022-01-10 01:36:45,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:36:45,789 INFO L470 AbstractCegarLoop]: Abstraction has 84078 states and 125997 transitions. [2022-01-10 01:36:45,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:36:45,789 INFO L276 IsEmpty]: Start isEmpty. Operand 84078 states and 125997 transitions. [2022-01-10 01:36:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 01:36:45,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:36:45,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:36:45,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 01:36:45,790 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:36:45,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:36:45,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1683684575, now seen corresponding path program 1 times [2022-01-10 01:36:45,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:36:45,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47386089] [2022-01-10 01:36:45,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:36:45,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:36:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:36:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:36:45,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:36:45,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47386089] [2022-01-10 01:36:45,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47386089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:36:45,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:36:45,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:36:45,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772569116] [2022-01-10 01:36:45,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:36:45,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:36:45,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:36:45,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:36:45,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:36:45,825 INFO L87 Difference]: Start difference. First operand 84078 states and 125997 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)