/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:24:14,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:24:14,484 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 09:24:14,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:24:14,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:24:14,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:24:14,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:24:14,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:24:14,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:24:14,510 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:24:14,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:24:14,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:24:14,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:24:14,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:24:14,512 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:24:14,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:24:14,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:24:14,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:24:14,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:24:14,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:24:14,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:24:14,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:24:14,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:24:14,513 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:24:14,514 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:24:14,514 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:24:14,514 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:24:14,514 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:24:14,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:24:14,514 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:24:14,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:24:14,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:24:14,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:24:14,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:24:14,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:24:14,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:24:14,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:24:14,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:24:14,516 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:24:14,516 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:24:14,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:24:14,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:24:14,517 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:24:14,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:24:14,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:24:14,518 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:24:14,518 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:24:14,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:24:14,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:24:14,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:24:14,739 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:24:14,741 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:24:14,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label16.c [2023-12-16 09:24:16,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:24:16,649 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:24:16,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label16.c [2023-12-16 09:24:16,672 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48ae73bba/bbc50cd33bc34548b17286afba47be7f/FLAGfaf6c2af4 [2023-12-16 09:24:16,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48ae73bba/bbc50cd33bc34548b17286afba47be7f [2023-12-16 09:24:16,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:24:16,688 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:24:16,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:24:16,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:24:16,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:24:16,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:24:16" (1/1) ... [2023-12-16 09:24:16,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e899ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:16, skipping insertion in model container [2023-12-16 09:24:16,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:24:16" (1/1) ... [2023-12-16 09:24:16,743 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:24:17,027 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label16.c[4807,4820] [2023-12-16 09:24:17,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:24:17,334 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:24:17,350 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label16.c[4807,4820] [2023-12-16 09:24:17,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:24:17,523 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:24:17,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17 WrapperNode [2023-12-16 09:24:17,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:24:17,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:24:17,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:24:17,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:24:17,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,612 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 857 [2023-12-16 09:24:17,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:24:17,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:24:17,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:24:17,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:24:17,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,698 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 09:24:17,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:24:17,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:24:17,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:24:17,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:24:17,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (1/1) ... [2023-12-16 09:24:17,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:24:17,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:24:17,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 09:24:17,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 09:24:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:24:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:24:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:24:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:24:17,958 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:24:17,960 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:24:20,646 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:24:20,685 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:24:20,685 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:24:20,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:24:20 BoogieIcfgContainer [2023-12-16 09:24:20,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:24:20,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:24:20,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:24:20,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:24:20,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:24:16" (1/3) ... [2023-12-16 09:24:20,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1635e148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:24:20, skipping insertion in model container [2023-12-16 09:24:20,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:24:17" (2/3) ... [2023-12-16 09:24:20,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1635e148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:24:20, skipping insertion in model container [2023-12-16 09:24:20,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:24:20" (3/3) ... [2023-12-16 09:24:20,691 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label16.c [2023-12-16 09:24:20,733 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:24:20,734 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 09:24:20,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:24:20,823 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5105b978, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:24:20,824 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 09:24:20,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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) [2023-12-16 09:24:20,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 09:24:20,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:20,849 INFO L195 NwaCegarLoop]: 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] [2023-12-16 09:24:20,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:20,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:20,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1110063371, now seen corresponding path program 1 times [2023-12-16 09:24:20,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:20,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434187152] [2023-12-16 09:24:20,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:20,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:20,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:20,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:20,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 09:24:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:20,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 09:24:20,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:20,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:20,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:20,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434187152] [2023-12-16 09:24:20,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434187152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:20,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:20,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:20,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75452927] [2023-12-16 09:24:20,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:20,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 09:24:20,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:21,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 09:24:21,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:24:21,006 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-12-16 09:24:21,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:21,053 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-16 09:24:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 09:24:21,057 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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 45 [2023-12-16 09:24:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:21,066 INFO L225 Difference]: With dead ends: 365 [2023-12-16 09:24:21,067 INFO L226 Difference]: Without dead ends: 181 [2023-12-16 09:24:21,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:24:21,073 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:21,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 09:24:21,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-16 09:24:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-16 09:24:21,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 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) [2023-12-16 09:24:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-16 09:24:21,115 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 45 [2023-12-16 09:24:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:21,116 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-16 09:24:21,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-12-16 09:24:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-16 09:24:21,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-16 09:24:21,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:21,117 INFO L195 NwaCegarLoop]: 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] [2023-12-16 09:24:21,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 09:24:21,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:21,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:21,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1694707743, now seen corresponding path program 1 times [2023-12-16 09:24:21,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065408863] [2023-12-16 09:24:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:21,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:21,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:21,323 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:21,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 09:24:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:21,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:24:21,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:21,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:21,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:21,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:21,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065408863] [2023-12-16 09:24:21,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065408863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:21,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:21,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:21,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123793911] [2023-12-16 09:24:21,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:21,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:21,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:21,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:21,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:21,485 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-12-16 09:24:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:24,814 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-16 09:24:24,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:24,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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 45 [2023-12-16 09:24:24,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:24,818 INFO L225 Difference]: With dead ends: 539 [2023-12-16 09:24:24,818 INFO L226 Difference]: Without dead ends: 359 [2023-12-16 09:24:24,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:24,820 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 136 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:24,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 76 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 09:24:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-16 09:24:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-16 09:24:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.4553072625698324) internal successors, (521), 358 states have internal predecessors, (521), 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) [2023-12-16 09:24:24,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 521 transitions. [2023-12-16 09:24:24,857 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 521 transitions. Word has length 45 [2023-12-16 09:24:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:24,858 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 521 transitions. [2023-12-16 09:24:24,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2023-12-16 09:24:24,858 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 521 transitions. [2023-12-16 09:24:24,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 09:24:24,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:24,861 INFO L195 NwaCegarLoop]: 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, 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] [2023-12-16 09:24:24,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 09:24:25,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:25,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:25,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:25,062 INFO L85 PathProgramCache]: Analyzing trace with hash 719046990, now seen corresponding path program 1 times [2023-12-16 09:24:25,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:25,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212788181] [2023-12-16 09:24:25,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:25,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:25,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:25,066 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:25,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 09:24:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:25,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:24:25,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:25,275 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:25,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:25,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:25,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212788181] [2023-12-16 09:24:25,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212788181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:25,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:25,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:25,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777274769] [2023-12-16 09:24:25,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:25,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:25,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:25,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:25,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:25,287 INFO L87 Difference]: Start difference. First operand 359 states and 521 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2023-12-16 09:24:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:28,572 INFO L93 Difference]: Finished difference Result 1073 states and 1560 transitions. [2023-12-16 09:24:28,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:28,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111 [2023-12-16 09:24:28,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:28,575 INFO L225 Difference]: With dead ends: 1073 [2023-12-16 09:24:28,575 INFO L226 Difference]: Without dead ends: 715 [2023-12-16 09:24:28,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:28,577 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 118 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:28,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 100 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 09:24:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-16 09:24:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-16 09:24:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3459383753501402) internal successors, (961), 714 states have internal predecessors, (961), 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) [2023-12-16 09:24:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 961 transitions. [2023-12-16 09:24:28,618 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 961 transitions. Word has length 111 [2023-12-16 09:24:28,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:28,618 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 961 transitions. [2023-12-16 09:24:28,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2023-12-16 09:24:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 961 transitions. [2023-12-16 09:24:28,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 09:24:28,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:28,621 INFO L195 NwaCegarLoop]: 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, 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] [2023-12-16 09:24:28,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 09:24:28,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:28,822 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:28,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:28,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1492164713, now seen corresponding path program 1 times [2023-12-16 09:24:28,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:28,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166620267] [2023-12-16 09:24:28,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:28,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:28,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:28,829 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:28,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 09:24:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:28,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:24:28,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:24:29,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:29,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:29,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166620267] [2023-12-16 09:24:29,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166620267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:29,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:29,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:29,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834773717] [2023-12-16 09:24:29,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:29,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:29,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:29,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:29,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:29,008 INFO L87 Difference]: Start difference. First operand 715 states and 961 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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) [2023-12-16 09:24:32,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:32,137 INFO L93 Difference]: Finished difference Result 1963 states and 2654 transitions. [2023-12-16 09:24:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:32,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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 113 [2023-12-16 09:24:32,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:32,141 INFO L225 Difference]: With dead ends: 1963 [2023-12-16 09:24:32,141 INFO L226 Difference]: Without dead ends: 1249 [2023-12-16 09:24:32,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:32,145 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:32,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 87 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 09:24:32,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-16 09:24:32,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2023-12-16 09:24:32,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.2459935897435896) internal successors, (1555), 1248 states have internal predecessors, (1555), 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) [2023-12-16 09:24:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1555 transitions. [2023-12-16 09:24:32,164 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1555 transitions. Word has length 113 [2023-12-16 09:24:32,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:32,164 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1555 transitions. [2023-12-16 09:24:32,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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) [2023-12-16 09:24:32,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1555 transitions. [2023-12-16 09:24:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-16 09:24:32,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:32,167 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 09:24:32,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 09:24:32,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:32,370 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:32,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:32,370 INFO L85 PathProgramCache]: Analyzing trace with hash -114322699, now seen corresponding path program 1 times [2023-12-16 09:24:32,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:32,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153534394] [2023-12-16 09:24:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:32,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:32,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:32,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:32,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 09:24:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:32,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 09:24:32,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 09:24:33,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:33,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:33,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153534394] [2023-12-16 09:24:33,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153534394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:33,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:33,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:24:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477961118] [2023-12-16 09:24:33,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:33,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 09:24:33,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:33,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 09:24:33,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:24:33,251 INFO L87 Difference]: Start difference. First operand 1249 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-12-16 09:24:35,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:35,600 INFO L93 Difference]: Finished difference Result 2170 states and 2740 transitions. [2023-12-16 09:24:35,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 09:24:35,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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 194 [2023-12-16 09:24:35,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:35,604 INFO L225 Difference]: With dead ends: 2170 [2023-12-16 09:24:35,604 INFO L226 Difference]: Without dead ends: 1071 [2023-12-16 09:24:35,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:24:35,606 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:35,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 110 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 09:24:35,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-16 09:24:35,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-16 09:24:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2392523364485981) internal successors, (1326), 1070 states have internal predecessors, (1326), 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) [2023-12-16 09:24:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1326 transitions. [2023-12-16 09:24:35,637 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1326 transitions. Word has length 194 [2023-12-16 09:24:35,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:35,638 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1326 transitions. [2023-12-16 09:24:35,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-12-16 09:24:35,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1326 transitions. [2023-12-16 09:24:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-16 09:24:35,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:35,644 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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] [2023-12-16 09:24:35,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 09:24:35,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:35,853 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:35,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:35,853 INFO L85 PathProgramCache]: Analyzing trace with hash -935725578, now seen corresponding path program 1 times [2023-12-16 09:24:35,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:35,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882234137] [2023-12-16 09:24:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:35,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:35,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:35,859 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:35,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 09:24:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:35,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:24:35,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 09:24:36,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:24:36,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:36,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882234137] [2023-12-16 09:24:36,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882234137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:24:36,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:24:36,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:24:36,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076347653] [2023-12-16 09:24:36,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:36,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:36,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:36,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:36,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:36,758 INFO L87 Difference]: Start difference. First operand 1071 states and 1326 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-12-16 09:24:38,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:38,928 INFO L93 Difference]: Finished difference Result 1785 states and 2286 transitions. [2023-12-16 09:24:38,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:38,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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 220 [2023-12-16 09:24:38,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:38,948 INFO L225 Difference]: With dead ends: 1785 [2023-12-16 09:24:38,949 INFO L226 Difference]: Without dead ends: 1071 [2023-12-16 09:24:38,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:24:38,953 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:38,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 121 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 09:24:38,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-16 09:24:38,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-16 09:24:38,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.233644859813084) internal successors, (1320), 1070 states have internal predecessors, (1320), 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) [2023-12-16 09:24:38,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1320 transitions. [2023-12-16 09:24:38,969 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1320 transitions. Word has length 220 [2023-12-16 09:24:38,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:38,970 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1320 transitions. [2023-12-16 09:24:38,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-12-16 09:24:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1320 transitions. [2023-12-16 09:24:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-12-16 09:24:38,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:38,973 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:24:38,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 09:24:39,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:39,177 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:39,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:39,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1784896998, now seen corresponding path program 1 times [2023-12-16 09:24:39,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:39,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543287375] [2023-12-16 09:24:39,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:39,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:39,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:39,181 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:39,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 09:24:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:39,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:24:39,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:39,769 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 131 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:24:39,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:24:40,168 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:24:40,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:40,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543287375] [2023-12-16 09:24:40,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543287375] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:24:40,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:24:40,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:24:40,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506905001] [2023-12-16 09:24:40,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:40,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:40,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:40,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:40,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:24:40,170 INFO L87 Difference]: Start difference. First operand 1071 states and 1320 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2023-12-16 09:24:46,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:46,633 INFO L93 Difference]: Finished difference Result 2141 states and 2811 transitions. [2023-12-16 09:24:46,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:46,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 324 [2023-12-16 09:24:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:46,638 INFO L225 Difference]: With dead ends: 2141 [2023-12-16 09:24:46,638 INFO L226 Difference]: Without dead ends: 1427 [2023-12-16 09:24:46,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:24:46,640 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:46,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 57 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-16 09:24:46,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-12-16 09:24:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1427. [2023-12-16 09:24:46,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.238429172510519) internal successors, (1766), 1426 states have internal predecessors, (1766), 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) [2023-12-16 09:24:46,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1766 transitions. [2023-12-16 09:24:46,681 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1766 transitions. Word has length 324 [2023-12-16 09:24:46,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:46,682 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 1766 transitions. [2023-12-16 09:24:46,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2023-12-16 09:24:46,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1766 transitions. [2023-12-16 09:24:46,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-16 09:24:46,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:46,700 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:24:46,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 09:24:46,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:46,906 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:46,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:46,906 INFO L85 PathProgramCache]: Analyzing trace with hash -892502003, now seen corresponding path program 1 times [2023-12-16 09:24:46,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:46,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850068193] [2023-12-16 09:24:46,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:46,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:46,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:46,914 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:46,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 09:24:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:47,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:24:47,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 408 proven. 159 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-16 09:24:47,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:24:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 567 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-16 09:24:47,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:24:47,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850068193] [2023-12-16 09:24:47,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850068193] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:24:47,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:24:47,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:24:47,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934837844] [2023-12-16 09:24:47,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:24:47,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:24:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:24:47,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:24:47,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:24:47,935 INFO L87 Difference]: Start difference. First operand 1427 states and 1766 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2023-12-16 09:24:53,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:24:53,483 INFO L93 Difference]: Finished difference Result 3209 states and 4149 transitions. [2023-12-16 09:24:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:24:53,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 435 [2023-12-16 09:24:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:24:53,489 INFO L225 Difference]: With dead ends: 3209 [2023-12-16 09:24:53,489 INFO L226 Difference]: Without dead ends: 2139 [2023-12-16 09:24:53,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:24:53,491 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 113 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:24:53,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 245 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-16 09:24:53,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-16 09:24:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2023-12-16 09:24:53,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.2464920486435922) internal successors, (2665), 2138 states have internal predecessors, (2665), 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) [2023-12-16 09:24:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2665 transitions. [2023-12-16 09:24:53,520 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2665 transitions. Word has length 435 [2023-12-16 09:24:53,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:24:53,520 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2665 transitions. [2023-12-16 09:24:53,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2023-12-16 09:24:53,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2665 transitions. [2023-12-16 09:24:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2023-12-16 09:24:53,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:24:53,524 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:24:53,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 09:24:53,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:53,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:24:53,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:24:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1008173621, now seen corresponding path program 1 times [2023-12-16 09:24:53,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:24:53,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637171804] [2023-12-16 09:24:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:24:53,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:24:53,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:24:53,732 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:24:53,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 09:24:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:24:53,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 09:24:53,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:24:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 471 proven. 277 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 09:24:54,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:25:01,419 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 719 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 09:25:01,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:01,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637171804] [2023-12-16 09:25:01,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637171804] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 09:25:01,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 09:25:01,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-16 09:25:01,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353861795] [2023-12-16 09:25:01,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 09:25:01,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 09:25:01,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:01,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 09:25:01,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-16 09:25:01,421 INFO L87 Difference]: Start difference. First operand 2139 states and 2665 transitions. Second operand has 9 states, 9 states have (on average 85.88888888888889) internal successors, (773), 9 states have internal predecessors, (773), 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) Received shutdown request... [2023-12-16 09:25:31,799 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:25:31,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 09:25:31,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 894 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-16 09:25:31,803 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 591 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:31,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 44 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 30.1s Time] [2023-12-16 09:25:31,804 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 09:25:31,808 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:25:31,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:32,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:32,006 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (2139states) and FLOYD_HOARE automaton (currently 9 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (4468 states constructed, input type IntersectNwa). [2023-12-16 09:25:32,009 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:32,011 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:25:32,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:25:32 BoogieIcfgContainer [2023-12-16 09:25:32,017 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:25:32,018 INFO L158 Benchmark]: Toolchain (without parser) took 75329.98ms. Allocated memory was 256.9MB in the beginning and 333.4MB in the end (delta: 76.5MB). Free memory was 202.5MB in the beginning and 202.4MB in the end (delta: 62.7kB). Peak memory consumption was 181.0MB. Max. memory is 8.0GB. [2023-12-16 09:25:32,018 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 178.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:25:32,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 833.99ms. Allocated memory is still 256.9MB. Free memory was 202.5MB in the beginning and 164.2MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-16 09:25:32,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.34ms. Allocated memory is still 256.9MB. Free memory was 164.2MB in the beginning and 157.8MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 09:25:32,018 INFO L158 Benchmark]: Boogie Preprocessor took 85.33ms. Allocated memory is still 256.9MB. Free memory was 220.4MB in the beginning and 213.0MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 09:25:32,018 INFO L158 Benchmark]: RCFGBuilder took 2952.96ms. Allocated memory is still 256.9MB. Free memory was 213.0MB in the beginning and 178.9MB in the end (delta: 34.1MB). Peak memory consumption was 96.0MB. Max. memory is 8.0GB. [2023-12-16 09:25:32,019 INFO L158 Benchmark]: TraceAbstraction took 71330.63ms. Allocated memory was 256.9MB in the beginning and 333.4MB in the end (delta: 76.5MB). Free memory was 178.4MB in the beginning and 202.4MB in the end (delta: -24.0MB). Peak memory consumption was 157.6MB. Max. memory is 8.0GB. [2023-12-16 09:25:32,020 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 178.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 833.99ms. Allocated memory is still 256.9MB. Free memory was 202.5MB in the beginning and 164.2MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 86.34ms. Allocated memory is still 256.9MB. Free memory was 164.2MB in the beginning and 157.8MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 85.33ms. Allocated memory is still 256.9MB. Free memory was 220.4MB in the beginning and 213.0MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2952.96ms. Allocated memory is still 256.9MB. Free memory was 213.0MB in the beginning and 178.9MB in the end (delta: 34.1MB). Peak memory consumption was 96.0MB. Max. memory is 8.0GB. * TraceAbstraction took 71330.63ms. Allocated memory was 256.9MB in the beginning and 333.4MB in the end (delta: 76.5MB). Free memory was 178.4MB in the beginning and 202.4MB in the end (delta: -24.0MB). Peak memory consumption was 157.6MB. 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 - TimeoutResultAtElement [Line: 152]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 152). Cancelled while NwaCegarLoop was constructing difference of abstraction (2139states) and FLOYD_HOARE automaton (currently 9 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (4468 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.2s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 56.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1402 SdHoareTripleChecker+Valid, 56.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1402 mSDsluCounter, 1135 SdHoareTripleChecker+Invalid, 50.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 752 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5607 IncrementalHoareTripleChecker+Invalid, 6359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 752 mSolverCounterUnsat, 1071 mSDtfsCounter, 5607 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3138 GetRequests, 3118 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2139occurred in iteration=8, InterpolantAutomatonStates: 24, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 1938 NumberOfCodeBlocks, 1938 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3136 ConstructedInterpolants, 0 QuantifiedInterpolants, 12422 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2338 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 3492/4092 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown