/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_Bitvector.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 04:15:11,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 04:15:11,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 04:15:11,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 04:15:11,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 04:15:11,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 04:15:11,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 04:15:11,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 04:15:11,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 04:15:11,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 04:15:11,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 04:15:11,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 04:15:11,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 04:15:11,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 04:15:11,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 04:15:11,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 04:15:11,536 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 04:15:11,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 04:15:11,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 04:15:11,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 04:15:11,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 04:15:11,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 04:15:11,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 04:15:11,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 04:15:11,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 04:15:11,537 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 04:15:11,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 04:15:11,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 04:15:11,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 04:15:11,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 04:15:11,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 04:15:11,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:15:11,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 04:15:11,538 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 04:15:11,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 04:15:11,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 04:15:11,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 04:15:11,714 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 04:15:11,714 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 04:15:11,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label02.c [2022-01-10 04:15:11,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647d12cf6/9596d81c543c4451aff1d798428c80e6/FLAG85596f075 [2022-01-10 04:15:12,180 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 04:15:12,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label02.c [2022-01-10 04:15:12,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647d12cf6/9596d81c543c4451aff1d798428c80e6/FLAG85596f075 [2022-01-10 04:15:12,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647d12cf6/9596d81c543c4451aff1d798428c80e6 [2022-01-10 04:15:12,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 04:15:12,208 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 04:15:12,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 04:15:12,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 04:15:12,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 04:15:12,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40176f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12, skipping insertion in model container [2022-01-10 04:15:12,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 04:15:12,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 04:15:12,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label02.c[16747,16760] [2022-01-10 04:15:12,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:15:12,507 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 04:15:12,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label02.c[16747,16760] [2022-01-10 04:15:12,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:15:12,619 INFO L208 MainTranslator]: Completed translation [2022-01-10 04:15:12,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12 WrapperNode [2022-01-10 04:15:12,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 04:15:12,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 04:15:12,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 04:15:12,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 04:15:12,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,679 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 655 [2022-01-10 04:15:12,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 04:15:12,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 04:15:12,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 04:15:12,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 04:15:12,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 04:15:12,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 04:15:12,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 04:15:12,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 04:15:12,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (1/1) ... [2022-01-10 04:15:12,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:15:12,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 04:15:12,752 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 04:15:12,760 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 04:15:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 04:15:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 04:15:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 04:15:12,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 04:15:12,848 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 04:15:12,849 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 04:15:13,606 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 04:15:13,616 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 04:15:13,616 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 04:15:13,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:15:13 BoogieIcfgContainer [2022-01-10 04:15:13,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 04:15:13,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 04:15:13,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 04:15:13,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 04:15:13,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 04:15:12" (1/3) ... [2022-01-10 04:15:13,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bcf253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:15:13, skipping insertion in model container [2022-01-10 04:15:13,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:12" (2/3) ... [2022-01-10 04:15:13,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bcf253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:15:13, skipping insertion in model container [2022-01-10 04:15:13,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:15:13" (3/3) ... [2022-01-10 04:15:13,625 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label02.c [2022-01-10 04:15:13,629 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 04:15:13,630 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 04:15:13,673 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 04:15:13,678 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 04:15:13,678 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 04:15:13,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 04:15:13,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 04:15:13,710 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:13,711 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:13,711 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:13,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:13,716 INFO L85 PathProgramCache]: Analyzing trace with hash -776841673, now seen corresponding path program 1 times [2022-01-10 04:15:13,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:13,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196264147] [2022-01-10 04:15:13,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:13,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:13,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:13,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:13,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 04:15:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:13,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:15:13,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:18,441 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 04:15:18,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:18,442 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:18,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196264147] [2022-01-10 04:15:18,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196264147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:18,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:18,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 04:15:18,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284806871] [2022-01-10 04:15:18,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:18,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 04:15:18,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:18,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 04:15:18,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:15:18,473 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 10 states, 10 states have (on average 9.0) internal successors, (90), 9 states have internal predecessors, (90), 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 04:15:19,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:19,942 INFO L93 Difference]: Finished difference Result 723 states and 1297 transitions. [2022-01-10 04:15:19,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 04:15:19,944 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 9 states have internal predecessors, (90), 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 90 [2022-01-10 04:15:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:19,952 INFO L225 Difference]: With dead ends: 723 [2022-01-10 04:15:19,953 INFO L226 Difference]: Without dead ends: 455 [2022-01-10 04:15:19,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-01-10 04:15:19,957 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 637 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:19,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [637 Valid, 173 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 04:15:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-01-10 04:15:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2022-01-10 04:15:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 1.2995594713656389) internal successors, (590), 454 states have internal predecessors, (590), 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 04:15:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 590 transitions. [2022-01-10 04:15:20,004 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 590 transitions. Word has length 90 [2022-01-10 04:15:20,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:20,005 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 590 transitions. [2022-01-10 04:15:20,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 9 states have internal predecessors, (90), 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 04:15:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 590 transitions. [2022-01-10 04:15:20,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 04:15:20,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:20,008 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:20,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:20,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:20,214 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:20,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1983827210, now seen corresponding path program 1 times [2022-01-10 04:15:20,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:20,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820599409] [2022-01-10 04:15:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:20,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:20,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:20,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:20,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 04:15:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:20,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:15:20,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:15:20,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:20,457 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:20,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820599409] [2022-01-10 04:15:20,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820599409] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:20,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:20,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:20,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274943365] [2022-01-10 04:15:20,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:20,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:15:20,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:20,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:15:20,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:20,459 INFO L87 Difference]: Start difference. First operand 455 states and 590 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 04:15:20,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:20,812 INFO L93 Difference]: Finished difference Result 981 states and 1357 transitions. [2022-01-10 04:15:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:15:20,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2022-01-10 04:15:20,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:20,815 INFO L225 Difference]: With dead ends: 981 [2022-01-10 04:15:20,815 INFO L226 Difference]: Without dead ends: 717 [2022-01-10 04:15:20,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 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 04:15:20,816 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 60 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:20,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 31 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 04:15:20,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-01-10 04:15:20,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2022-01-10 04:15:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.3156424581005586) internal successors, (942), 716 states have internal predecessors, (942), 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 04:15:20,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 942 transitions. [2022-01-10 04:15:20,831 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 942 transitions. Word has length 97 [2022-01-10 04:15:20,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:20,831 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 942 transitions. [2022-01-10 04:15:20,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 04:15:20,832 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 942 transitions. [2022-01-10 04:15:20,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 04:15:20,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:20,835 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:20,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:21,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:21,044 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:21,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:21,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1245516296, now seen corresponding path program 1 times [2022-01-10 04:15:21,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:21,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045778279] [2022-01-10 04:15:21,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:21,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:21,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:21,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:21,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 04:15:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:21,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 04:15:21,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:15:21,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:21,261 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:21,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045778279] [2022-01-10 04:15:21,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045778279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:21,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:21,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:21,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023532450] [2022-01-10 04:15:21,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:21,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:15:21,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:21,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:15:21,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:21,263 INFO L87 Difference]: Start difference. First operand 717 states and 942 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 04:15:21,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:21,640 INFO L93 Difference]: Finished difference Result 1505 states and 1952 transitions. [2022-01-10 04:15:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:15:21,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 110 [2022-01-10 04:15:21,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:21,643 INFO L225 Difference]: With dead ends: 1505 [2022-01-10 04:15:21,643 INFO L226 Difference]: Without dead ends: 717 [2022-01-10 04:15:21,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 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 04:15:21,645 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 131 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:21,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 60 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 04:15:21,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-01-10 04:15:21,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2022-01-10 04:15:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.1927374301675977) internal successors, (854), 716 states have internal predecessors, (854), 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 04:15:21,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 854 transitions. [2022-01-10 04:15:21,654 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 854 transitions. Word has length 110 [2022-01-10 04:15:21,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:21,655 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 854 transitions. [2022-01-10 04:15:21,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 04:15:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 854 transitions. [2022-01-10 04:15:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 04:15:21,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:21,657 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:21,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:21,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:21,864 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:21,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:21,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1815042499, now seen corresponding path program 1 times [2022-01-10 04:15:21,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:21,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615413106] [2022-01-10 04:15:21,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:21,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:21,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:21,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:21,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 04:15:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:21,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:15:21,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:15:22,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:22,035 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:22,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615413106] [2022-01-10 04:15:22,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615413106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:22,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:22,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:22,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561057158] [2022-01-10 04:15:22,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:22,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:15:22,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:22,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:15:22,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:22,037 INFO L87 Difference]: Start difference. First operand 717 states and 854 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 04:15:22,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:22,426 INFO L93 Difference]: Finished difference Result 1767 states and 2157 transitions. [2022-01-10 04:15:22,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:15:22,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 112 [2022-01-10 04:15:22,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:22,430 INFO L225 Difference]: With dead ends: 1767 [2022-01-10 04:15:22,430 INFO L226 Difference]: Without dead ends: 1110 [2022-01-10 04:15:22,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 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 04:15:22,431 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 118 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:22,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 210 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 04:15:22,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-01-10 04:15:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 979. [2022-01-10 04:15:22,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 978 states have (on average 1.1186094069529653) internal successors, (1094), 978 states have internal predecessors, (1094), 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 04:15:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1094 transitions. [2022-01-10 04:15:22,445 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1094 transitions. Word has length 112 [2022-01-10 04:15:22,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:22,445 INFO L470 AbstractCegarLoop]: Abstraction has 979 states and 1094 transitions. [2022-01-10 04:15:22,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 04:15:22,445 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1094 transitions. [2022-01-10 04:15:22,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 04:15:22,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:22,447 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:22,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:22,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:22,652 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:22,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:22,653 INFO L85 PathProgramCache]: Analyzing trace with hash 819385791, now seen corresponding path program 1 times [2022-01-10 04:15:22,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:22,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98626066] [2022-01-10 04:15:22,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:22,654 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:22,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:22,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:22,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 04:15:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:22,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:15:22,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:24,431 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:15:24,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:24,432 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:24,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98626066] [2022-01-10 04:15:24,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98626066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:24,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:24,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 04:15:24,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816536318] [2022-01-10 04:15:24,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:24,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 04:15:24,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:24,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 04:15:24,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:15:24,434 INFO L87 Difference]: Start difference. First operand 979 states and 1094 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 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 04:15:25,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:25,044 INFO L93 Difference]: Finished difference Result 2346 states and 2679 transitions. [2022-01-10 04:15:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 04:15:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 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 127 [2022-01-10 04:15:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:25,050 INFO L225 Difference]: With dead ends: 2346 [2022-01-10 04:15:25,050 INFO L226 Difference]: Without dead ends: 1410 [2022-01-10 04:15:25,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:15:25,053 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 209 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:25,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 46 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 04:15:25,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-01-10 04:15:25,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1407. [2022-01-10 04:15:25,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 1.1152204836415363) internal successors, (1568), 1406 states have internal predecessors, (1568), 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 04:15:25,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1568 transitions. [2022-01-10 04:15:25,073 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1568 transitions. Word has length 127 [2022-01-10 04:15:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:25,073 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 1568 transitions. [2022-01-10 04:15:25,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 states have internal predecessors, (127), 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 04:15:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1568 transitions. [2022-01-10 04:15:25,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-10 04:15:25,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:25,078 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:25,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:25,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:25,284 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:25,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1117086005, now seen corresponding path program 1 times [2022-01-10 04:15:25,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:25,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576554476] [2022-01-10 04:15:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:25,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:25,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:25,287 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:25,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 04:15:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:25,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 04:15:25,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 04:15:25,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:25,581 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:25,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576554476] [2022-01-10 04:15:25,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576554476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:25,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:25,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:25,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091086959] [2022-01-10 04:15:25,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:25,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:15:25,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:25,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:15:25,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:25,583 INFO L87 Difference]: Start difference. First operand 1407 states and 1568 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 04:15:25,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:25,903 INFO L93 Difference]: Finished difference Result 3409 states and 3846 transitions. [2022-01-10 04:15:25,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:15:25,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 170 [2022-01-10 04:15:25,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:25,909 INFO L225 Difference]: With dead ends: 3409 [2022-01-10 04:15:25,909 INFO L226 Difference]: Without dead ends: 2193 [2022-01-10 04:15:25,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 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 04:15:25,910 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 109 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:25,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 44 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 04:15:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2022-01-10 04:15:25,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2062. [2022-01-10 04:15:25,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 2061 states have (on average 1.1023774866569627) internal successors, (2272), 2061 states have internal predecessors, (2272), 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 04:15:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2272 transitions. [2022-01-10 04:15:25,933 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2272 transitions. Word has length 170 [2022-01-10 04:15:25,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:25,933 INFO L470 AbstractCegarLoop]: Abstraction has 2062 states and 2272 transitions. [2022-01-10 04:15:25,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 04:15:25,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2272 transitions. [2022-01-10 04:15:25,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-10 04:15:25,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:25,937 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:25,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:26,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:26,143 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:26,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:26,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1701736953, now seen corresponding path program 1 times [2022-01-10 04:15:26,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:26,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651673075] [2022-01-10 04:15:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:26,145 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:26,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:26,146 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:26,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 04:15:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:26,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 04:15:26,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:26,481 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-01-10 04:15:26,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:26,482 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:26,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651673075] [2022-01-10 04:15:26,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651673075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:26,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:26,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:26,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961655035] [2022-01-10 04:15:26,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:26,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 04:15:26,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:26,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 04:15:26,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 04:15:26,483 INFO L87 Difference]: Start difference. First operand 2062 states and 2272 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 04:15:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:27,013 INFO L93 Difference]: Finished difference Result 4981 states and 5544 transitions. [2022-01-10 04:15:27,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 04:15:27,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 198 [2022-01-10 04:15:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:27,021 INFO L225 Difference]: With dead ends: 4981 [2022-01-10 04:15:27,021 INFO L226 Difference]: Without dead ends: 2848 [2022-01-10 04:15:27,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 04:15:27,023 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 240 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:27,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 37 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 04:15:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2022-01-10 04:15:27,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2717. [2022-01-10 04:15:27,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2716 states have (on average 1.0751104565537555) internal successors, (2920), 2716 states have internal predecessors, (2920), 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 04:15:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 2920 transitions. [2022-01-10 04:15:27,055 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 2920 transitions. Word has length 198 [2022-01-10 04:15:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:27,055 INFO L470 AbstractCegarLoop]: Abstraction has 2717 states and 2920 transitions. [2022-01-10 04:15:27,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 04:15:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 2920 transitions. [2022-01-10 04:15:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-01-10 04:15:27,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:27,059 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:27,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-01-10 04:15:27,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:27,265 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1500781169, now seen corresponding path program 1 times [2022-01-10 04:15:27,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:27,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977597468] [2022-01-10 04:15:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:27,268 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:27,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:27,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:27,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 04:15:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:27,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 04:15:27,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-01-10 04:15:27,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:27,661 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:27,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977597468] [2022-01-10 04:15:27,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977597468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:27,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:27,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:27,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874961186] [2022-01-10 04:15:27,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:27,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 04:15:27,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:27,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 04:15:27,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 04:15:27,663 INFO L87 Difference]: Start difference. First operand 2717 states and 2920 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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 04:15:28,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:28,077 INFO L93 Difference]: Finished difference Result 5243 states and 5643 transitions. [2022-01-10 04:15:28,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 04:15:28,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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 238 [2022-01-10 04:15:28,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:28,083 INFO L225 Difference]: With dead ends: 5243 [2022-01-10 04:15:28,083 INFO L226 Difference]: Without dead ends: 2717 [2022-01-10 04:15:28,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 04:15:28,085 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 298 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:28,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 33 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 04:15:28,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2022-01-10 04:15:28,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2717. [2022-01-10 04:15:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2716 states have (on average 1.0721649484536082) internal successors, (2912), 2716 states have internal predecessors, (2912), 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 04:15:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 2912 transitions. [2022-01-10 04:15:28,112 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 2912 transitions. Word has length 238 [2022-01-10 04:15:28,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:28,113 INFO L470 AbstractCegarLoop]: Abstraction has 2717 states and 2912 transitions. [2022-01-10 04:15:28,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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 04:15:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 2912 transitions. [2022-01-10 04:15:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-01-10 04:15:28,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:28,116 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:28,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-01-10 04:15:28,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:28,323 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:28,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:28,323 INFO L85 PathProgramCache]: Analyzing trace with hash 737353603, now seen corresponding path program 1 times [2022-01-10 04:15:28,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:28,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814297298] [2022-01-10 04:15:28,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:28,324 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:28,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:28,325 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:28,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 04:15:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:28,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:15:28,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:28,667 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-01-10 04:15:28,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:28,667 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:28,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814297298] [2022-01-10 04:15:28,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814297298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:28,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:28,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:28,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707183008] [2022-01-10 04:15:28,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:28,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:15:28,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:28,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:15:28,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:28,669 INFO L87 Difference]: Start difference. First operand 2717 states and 2912 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 04:15:28,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:28,986 INFO L93 Difference]: Finished difference Result 3110 states and 3332 transitions. [2022-01-10 04:15:28,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:15:28,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 247 [2022-01-10 04:15:28,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:28,987 INFO L225 Difference]: With dead ends: 3110 [2022-01-10 04:15:28,987 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 04:15:28,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 245 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 04:15:28,989 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 65 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:28,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 27 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 04:15:28,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 04:15:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 04:15:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 04:15:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 04:15:28,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 247 [2022-01-10 04:15:28,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:28,990 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 04:15:28,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 04:15:28,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 04:15:28,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 04:15:28,992 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 04:15:29,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:29,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:29,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,530 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,531 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-01-10 04:15:29,532 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-01-10 04:15:29,533 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,534 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,535 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-01-10 04:15:29,536 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse2 (not (= (_ bv8 32) ~a12~0))) (.cse3 (not (= (_ bv1 32) ~a20~0))) (.cse1 (= (_ bv1 32) ~a21~0)) (.cse0 (= ~a8~0 (_ bv13 32)))) (or (and (= (_ bv1 32) ~a17~0) .cse0) (and (not (= ~a7~0 (_ bv1 32))) .cse1) (and (= (_ bv5 32) ~a16~0) .cse1) (and (= (_ bv4 32) ~a16~0) .cse1 (or .cse2 .cse3)) (and (or .cse2 .cse3 (not .cse1)) .cse0))) [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-01-10 04:15:29,537 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-01-10 04:15:29,538 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-01-10 04:15:29,539 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse2 (not (= (_ bv8 32) ~a12~0))) (.cse3 (not (= (_ bv1 32) ~a20~0))) (.cse1 (= (_ bv1 32) ~a21~0)) (.cse0 (= ~a8~0 (_ bv13 32)))) (or (and (= (_ bv1 32) ~a17~0) .cse0) (and (not (= ~a7~0 (_ bv1 32))) .cse1) (and (= (_ bv5 32) ~a16~0) .cse1) (and (= (_ bv4 32) ~a16~0) .cse1 (or .cse2 .cse3)) (and (or .cse2 .cse3 (not .cse1)) .cse0))) [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 456) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-01-10 04:15:29,540 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-01-10 04:15:29,541 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-01-10 04:15:29,543 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:29,544 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 04:15:29,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 04:15:29 BoogieIcfgContainer [2022-01-10 04:15:29,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 04:15:29,563 INFO L158 Benchmark]: Toolchain (without parser) took 17354.62ms. Allocated memory was 208.7MB in the beginning and 434.1MB in the end (delta: 225.4MB). Free memory was 151.8MB in the beginning and 300.4MB in the end (delta: -148.6MB). Peak memory consumption was 76.6MB. Max. memory is 8.0GB. [2022-01-10 04:15:29,563 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 170.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 04:15:29,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.41ms. Allocated memory was 208.7MB in the beginning and 276.8MB in the end (delta: 68.2MB). Free memory was 151.5MB in the beginning and 231.4MB in the end (delta: -79.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-10 04:15:29,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.81ms. Allocated memory is still 276.8MB. Free memory was 231.4MB in the beginning and 225.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-10 04:15:29,564 INFO L158 Benchmark]: Boogie Preprocessor took 36.84ms. Allocated memory is still 276.8MB. Free memory was 225.7MB in the beginning and 220.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-10 04:15:29,564 INFO L158 Benchmark]: RCFGBuilder took 901.66ms. Allocated memory is still 276.8MB. Free memory was 220.9MB in the beginning and 160.6MB in the end (delta: 60.3MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. [2022-01-10 04:15:29,564 INFO L158 Benchmark]: TraceAbstraction took 15942.59ms. Allocated memory was 276.8MB in the beginning and 434.1MB in the end (delta: 157.3MB). Free memory was 160.1MB in the beginning and 300.4MB in the end (delta: -140.3MB). Peak memory consumption was 18.6MB. Max. memory is 8.0GB. [2022-01-10 04:15:29,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 170.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 409.41ms. Allocated memory was 208.7MB in the beginning and 276.8MB in the end (delta: 68.2MB). Free memory was 151.5MB in the beginning and 231.4MB in the end (delta: -79.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.81ms. Allocated memory is still 276.8MB. Free memory was 231.4MB in the beginning and 225.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.84ms. Allocated memory is still 276.8MB. Free memory was 225.7MB in the beginning and 220.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 901.66ms. Allocated memory is still 276.8MB. Free memory was 220.9MB in the beginning and 160.6MB in the end (delta: 60.3MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. * TraceAbstraction took 15942.59ms. Allocated memory was 276.8MB in the beginning and 434.1MB in the end (delta: 157.3MB). Free memory was 160.1MB in the beginning and 300.4MB in the end (delta: -140.3MB). Peak memory consumption was 18.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 456]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.9s, OverallIterations: 9, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1867 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1867 mSDsluCounter, 661 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 686 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4797 IncrementalHoareTripleChecker+Invalid, 5483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 686 mSolverCounterUnsat, 559 mSDtfsCounter, 4797 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1381 GetRequests, 1355 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2717occurred in iteration=7, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 396 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 66 NumberOfFragments, 113 HoareAnnotationTreeSize, 3 FomulaSimplifications, 206 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1413 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 1389 NumberOfCodeBlocks, 1389 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1380 ConstructedInterpolants, 0 QuantifiedInterpolants, 9617 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2048 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1137/1137 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((1bv32 == a17 && a8 == 13bv32) || (!(a7 == 1bv32) && 1bv32 == a21)) || (5bv32 == a16 && 1bv32 == a21)) || ((4bv32 == a16 && 1bv32 == a21) && (!(8bv32 == a12) || !(1bv32 == a20)))) || (((!(8bv32 == a12) || !(1bv32 == a20)) || !(1bv32 == a21)) && a8 == 13bv32) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((1bv32 == a17 && a8 == 13bv32) || (!(a7 == 1bv32) && 1bv32 == a21)) || (5bv32 == a16 && 1bv32 == a21)) || ((4bv32 == a16 && 1bv32 == a21) && (!(8bv32 == a12) || !(1bv32 == a20)))) || (((!(8bv32 == a12) || !(1bv32 == a20)) || !(1bv32 == a21)) && a8 == 13bv32) RESULT: Ultimate proved your program to be correct! [2022-01-10 04:15:29,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...