/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/Problem19_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 17:01:53,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 17:01:53,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 17:01:53,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 17:01:53,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 17:01:53,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 17:01:53,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 17:01:53,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 17:01:53,865 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 17:01:53,865 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 17:01:53,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 17:01:53,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 17:01:53,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 17:01:53,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 17:01:53,867 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 17:01:53,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 17:01:53,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 17:01:53,867 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 17:01:53,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 17:01:53,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 17:01:53,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 17:01:53,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 17:01:53,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 17:01:53,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 17:01:53,869 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 17:01:53,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 17:01:53,869 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 17:01:53,869 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 17:01:53,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 17:01:53,870 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 17:01:53,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 17:01:53,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 17:01:53,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 17:01:53,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 17:01:53,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:01:53,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 17:01:53,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 17:01:53,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 17:01:53,872 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 17:01:53,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 17:01:53,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 17:01:53,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 17:01:53,872 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 17:01:53,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 17:01:53,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 17:01:53,873 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 17:01:53,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 17:01:54,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 17:01:54,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 17:01:54,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 17:01:54,034 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 17:01:54,034 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 17:01:54,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label00.c [2023-12-22 17:01:55,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 17:01:55,554 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 17:01:55,555 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label00.c [2023-12-22 17:01:55,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7b91d918/2aeee73117bb4240b2c6d3bf69b3138e/FLAG3a7a8589c [2023-12-22 17:01:55,600 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7b91d918/2aeee73117bb4240b2c6d3bf69b3138e [2023-12-22 17:01:55,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 17:01:55,603 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 17:01:55,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 17:01:55,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 17:01:55,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 17:01:55,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:01:55" (1/1) ... [2023-12-22 17:01:55,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a534c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:55, skipping insertion in model container [2023-12-22 17:01:55,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:01:55" (1/1) ... [2023-12-22 17:01:55,765 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 17:01:56,089 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/Problem19_label00.c[5401,5414] [2023-12-22 17:01:57,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:01:57,135 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 17:01:57,154 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/Problem19_label00.c[5401,5414] [2023-12-22 17:01:57,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:01:57,765 INFO L206 MainTranslator]: Completed translation [2023-12-22 17:01:57,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57 WrapperNode [2023-12-22 17:01:57,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 17:01:57,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 17:01:57,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 17:01:57,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 17:01:57,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:57,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,093 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9424 [2023-12-22 17:01:58,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 17:01:58,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 17:01:58,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 17:01:58,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 17:01:58,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,144 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,221 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]. [2023-12-22 17:01:58,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 17:01:58,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 17:01:58,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 17:01:58,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 17:01:58,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (1/1) ... [2023-12-22 17:01:58,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:01:58,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 17:01:58,631 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) [2023-12-22 17:01:58,649 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 [2023-12-22 17:01:58,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 17:01:58,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 17:01:58,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 17:01:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 17:01:58,737 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 17:01:58,791 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 17:03:01,179 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 17:03:01,242 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 17:03:01,242 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 17:03:01,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:03:01 BoogieIcfgContainer [2023-12-22 17:03:01,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 17:03:01,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 17:03:01,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 17:03:01,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 17:03:01,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:01:55" (1/3) ... [2023-12-22 17:03:01,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5051c685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:03:01, skipping insertion in model container [2023-12-22 17:03:01,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:01:57" (2/3) ... [2023-12-22 17:03:01,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5051c685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:03:01, skipping insertion in model container [2023-12-22 17:03:01,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:03:01" (3/3) ... [2023-12-22 17:03:01,249 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label00.c [2023-12-22 17:03:01,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 17:03:01,261 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 17:03:01,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 17:03:01,333 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;@7d7cc83c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 17:03:01,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 17:03:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 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) [2023-12-22 17:03:01,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-22 17:03:01,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:03:01,348 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] [2023-12-22 17:03:01,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:03:01,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:03:01,354 INFO L85 PathProgramCache]: Analyzing trace with hash -39213477, now seen corresponding path program 1 times [2023-12-22 17:03:01,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:03:01,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752589944] [2023-12-22 17:03:01,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:03:01,444 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 [2023-12-22 17:03:01,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:03:01,457 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) [2023-12-22 17:03:01,458 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 [2023-12-22 17:03:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:03:01,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 17:03:01,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:03:01,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:03:01,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:03:01,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:03:01,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752589944] [2023-12-22 17:03:01,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752589944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:03:01,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:03:01,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:03:01,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010740193] [2023-12-22 17:03:01,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:03:01,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 17:03:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:03:01,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 17:03:01,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:03:01,601 INFO L87 Difference]: Start difference. First operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 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 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2023-12-22 17:03:01,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:03:01,721 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-22 17:03:01,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 17:03:01,723 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2023-12-22 17:03:01,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:03:01,737 INFO L225 Difference]: With dead ends: 3371 [2023-12-22 17:03:01,737 INFO L226 Difference]: Without dead ends: 1684 [2023-12-22 17:03:01,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:03:01,745 INFO L413 NwaCegarLoop]: 3138 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, 3138 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 [2023-12-22 17:03:01,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 17:03:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-22 17:03:01,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-22 17:03:01,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 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) [2023-12-22 17:03:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-22 17:03:01,820 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 39 [2023-12-22 17:03:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:03:01,821 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-22 17:03:01,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2023-12-22 17:03:01,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-22 17:03:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-22 17:03:01,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:03:01,822 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] [2023-12-22 17:03:01,835 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 [2023-12-22 17:03:02,024 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 [2023-12-22 17:03:02,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:03:02,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:03:02,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1453017733, now seen corresponding path program 1 times [2023-12-22 17:03:02,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:03:02,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737724258] [2023-12-22 17:03:02,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:03:02,026 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 [2023-12-22 17:03:02,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:03:02,040 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) [2023-12-22 17:03:02,045 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 [2023-12-22 17:03:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:03:02,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:03:02,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:03:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:03:02,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:03:02,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:03:02,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737724258] [2023-12-22 17:03:02,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737724258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:03:02,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:03:02,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:03:02,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502717151] [2023-12-22 17:03:02,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:03:02,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:03:02,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:03:02,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:03:02,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:03:02,298 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2023-12-22 17:04:41,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:04:41,167 INFO L93 Difference]: Finished difference Result 4782 states and 8990 transitions. [2023-12-22 17:04:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:04:41,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2023-12-22 17:04:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:04:41,178 INFO L225 Difference]: With dead ends: 4782 [2023-12-22 17:04:41,178 INFO L226 Difference]: Without dead ends: 3099 [2023-12-22 17:04:41,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:04:41,181 INFO L413 NwaCegarLoop]: 1477 mSDtfsCounter, 1439 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 4446 mSolverCounterSat, 1139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 5585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1139 IncrementalHoareTripleChecker+Valid, 4446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.5s IncrementalHoareTripleChecker+Time [2023-12-22 17:04:41,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 1679 Invalid, 5585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1139 Valid, 4446 Invalid, 0 Unknown, 0 Unchecked, 98.5s Time] [2023-12-22 17:04:41,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2023-12-22 17:04:41,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 3097. [2023-12-22 17:04:41,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3096 states have (on average 1.571705426356589) internal successors, (4866), 3096 states have internal predecessors, (4866), 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) [2023-12-22 17:04:41,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4866 transitions. [2023-12-22 17:04:41,225 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4866 transitions. Word has length 39 [2023-12-22 17:04:41,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:04:41,225 INFO L495 AbstractCegarLoop]: Abstraction has 3097 states and 4866 transitions. [2023-12-22 17:04:41,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2023-12-22 17:04:41,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4866 transitions. [2023-12-22 17:04:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-22 17:04:41,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:04:41,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:04:41,232 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 (3)] Forceful destruction successful, exit code 0 [2023-12-22 17:04:41,428 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 [2023-12-22 17:04:41,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:04:41,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:04:41,430 INFO L85 PathProgramCache]: Analyzing trace with hash -2117320287, now seen corresponding path program 1 times [2023-12-22 17:04:41,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:04:41,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760938209] [2023-12-22 17:04:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:04:41,431 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 [2023-12-22 17:04:41,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:04:41,433 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) [2023-12-22 17:04:41,460 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 [2023-12-22 17:04:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:04:41,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:04:41,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:04:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:04:42,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:04:42,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:04:42,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760938209] [2023-12-22 17:04:42,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760938209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:04:42,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:04:42,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:04:42,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575008201] [2023-12-22 17:04:42,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:04:42,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:04:42,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:04:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:04:42,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:04:42,030 INFO L87 Difference]: Start difference. First operand 3097 states and 4866 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2023-12-22 17:06:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:06:48,620 INFO L93 Difference]: Finished difference Result 9073 states and 14291 transitions. [2023-12-22 17:06:48,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:06:48,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 108 [2023-12-22 17:06:48,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:06:48,643 INFO L225 Difference]: With dead ends: 9073 [2023-12-22 17:06:48,643 INFO L226 Difference]: Without dead ends: 5977 [2023-12-22 17:06:48,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:06:48,648 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 2516 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 5283 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 5548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 5283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.2s IncrementalHoareTripleChecker+Time [2023-12-22 17:06:48,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 987 Invalid, 5548 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 5283 Invalid, 0 Unknown, 0 Unchecked, 126.2s Time] [2023-12-22 17:06:48,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2023-12-22 17:06:48,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 5974. [2023-12-22 17:06:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5973 states have (on average 1.5220157374853507) internal successors, (9091), 5973 states have internal predecessors, (9091), 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) [2023-12-22 17:06:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 9091 transitions. [2023-12-22 17:06:48,735 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 9091 transitions. Word has length 108 [2023-12-22 17:06:48,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:06:48,735 INFO L495 AbstractCegarLoop]: Abstraction has 5974 states and 9091 transitions. [2023-12-22 17:06:48,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2023-12-22 17:06:48,735 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 9091 transitions. [2023-12-22 17:06:48,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 17:06:48,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:06:48,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:06:48,753 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 [2023-12-22 17:06:48,941 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 [2023-12-22 17:06:48,941 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:06:48,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:06:48,944 INFO L85 PathProgramCache]: Analyzing trace with hash -492628780, now seen corresponding path program 1 times [2023-12-22 17:06:48,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:06:48,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624427817] [2023-12-22 17:06:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:06:48,945 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 [2023-12-22 17:06:48,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:06:48,962 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) [2023-12-22 17:06:48,972 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 [2023-12-22 17:06:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:06:49,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:06:49,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:06:49,700 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:06:49,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:06:49,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:06:49,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624427817] [2023-12-22 17:06:49,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624427817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:06:49,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:06:49,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:06:49,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420098027] [2023-12-22 17:06:49,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:06:49,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:06:49,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:06:49,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:06:49,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:06:49,703 INFO L87 Difference]: Start difference. First operand 5974 states and 9091 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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) [2023-12-22 17:08:37,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:08:37,216 INFO L93 Difference]: Finished difference Result 14709 states and 22258 transitions. [2023-12-22 17:08:37,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:08:37,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 130 [2023-12-22 17:08:37,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:08:37,241 INFO L225 Difference]: With dead ends: 14709 [2023-12-22 17:08:37,247 INFO L226 Difference]: Without dead ends: 8736 [2023-12-22 17:08:37,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:08:37,262 INFO L413 NwaCegarLoop]: 1703 mSDtfsCounter, 1450 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 4771 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 5493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 4771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.1s IncrementalHoareTripleChecker+Time [2023-12-22 17:08:37,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 1923 Invalid, 5493 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [722 Valid, 4771 Invalid, 0 Unknown, 0 Unchecked, 107.1s Time] [2023-12-22 17:08:37,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8736 states. [2023-12-22 17:08:37,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8736 to 8718. [2023-12-22 17:08:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8718 states, 8717 states have (on average 1.4050705517953423) internal successors, (12248), 8717 states have internal predecessors, (12248), 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) [2023-12-22 17:08:37,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8718 states to 8718 states and 12248 transitions. [2023-12-22 17:08:37,355 INFO L78 Accepts]: Start accepts. Automaton has 8718 states and 12248 transitions. Word has length 130 [2023-12-22 17:08:37,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:08:37,357 INFO L495 AbstractCegarLoop]: Abstraction has 8718 states and 12248 transitions. [2023-12-22 17:08:37,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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) [2023-12-22 17:08:37,357 INFO L276 IsEmpty]: Start isEmpty. Operand 8718 states and 12248 transitions. [2023-12-22 17:08:37,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-22 17:08:37,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:08:37,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:08:37,373 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 [2023-12-22 17:08:37,564 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 [2023-12-22 17:08:37,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:08:37,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:08:37,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1572322117, now seen corresponding path program 1 times [2023-12-22 17:08:37,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:08:37,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266433499] [2023-12-22 17:08:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:08:37,568 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 [2023-12-22 17:08:37,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:08:37,569 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) [2023-12-22 17:08:37,570 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 [2023-12-22 17:08:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:08:37,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:08:37,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:08:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:08:38,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:08:38,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:08:38,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266433499] [2023-12-22 17:08:38,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266433499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:08:38,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:08:38,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:08:38,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894548659] [2023-12-22 17:08:38,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:08:38,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:08:38,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:08:38,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:08:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:08:38,359 INFO L87 Difference]: Start difference. First operand 8718 states and 12248 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) [2023-12-22 17:10:17,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:10:17,583 INFO L93 Difference]: Finished difference Result 22906 states and 31677 transitions. [2023-12-22 17:10:17,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:10:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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 136 [2023-12-22 17:10:17,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:10:17,632 INFO L225 Difference]: With dead ends: 22906 [2023-12-22 17:10:17,632 INFO L226 Difference]: Without dead ends: 14189 [2023-12-22 17:10:17,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:10:17,638 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 1375 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 4353 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 5273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 4353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.8s IncrementalHoareTripleChecker+Time [2023-12-22 17:10:17,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 1917 Invalid, 5273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [920 Valid, 4353 Invalid, 0 Unknown, 0 Unchecked, 98.8s Time] [2023-12-22 17:10:17,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14189 states. [2023-12-22 17:10:17,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14189 to 14185. [2023-12-22 17:10:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14185 states, 14184 states have (on average 1.2660744500846024) internal successors, (17958), 14184 states have internal predecessors, (17958), 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) [2023-12-22 17:10:17,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14185 states to 14185 states and 17958 transitions. [2023-12-22 17:10:17,820 INFO L78 Accepts]: Start accepts. Automaton has 14185 states and 17958 transitions. Word has length 136 [2023-12-22 17:10:17,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:10:17,821 INFO L495 AbstractCegarLoop]: Abstraction has 14185 states and 17958 transitions. [2023-12-22 17:10:17,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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) [2023-12-22 17:10:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 14185 states and 17958 transitions. [2023-12-22 17:10:17,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 17:10:17,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:10:17,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:10:17,837 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 (6)] Forceful destruction successful, exit code 0 [2023-12-22 17:10:18,037 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 [2023-12-22 17:10:18,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:10:18,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:10:18,039 INFO L85 PathProgramCache]: Analyzing trace with hash 23171048, now seen corresponding path program 1 times [2023-12-22 17:10:18,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:10:18,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302049494] [2023-12-22 17:10:18,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:10:18,040 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 [2023-12-22 17:10:18,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:10:18,041 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) [2023-12-22 17:10:18,051 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 [2023-12-22 17:10:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:10:18,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 17:10:18,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:10:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:10:21,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:10:21,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:10:21,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302049494] [2023-12-22 17:10:21,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302049494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:10:21,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:10:21,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:10:21,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002759710] [2023-12-22 17:10:21,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:10:21,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:10:21,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:10:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:10:21,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:10:21,441 INFO L87 Difference]: Start difference. First operand 14185 states and 17958 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 2 states have internal predecessors, (246), 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) [2023-12-22 17:11:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:11:42,676 INFO L93 Difference]: Finished difference Result 24260 states and 31350 transitions. [2023-12-22 17:11:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:11:42,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 2 states have internal predecessors, (246), 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 246 [2023-12-22 17:11:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:11:42,706 INFO L225 Difference]: With dead ends: 24260 [2023-12-22 17:11:42,707 INFO L226 Difference]: Without dead ends: 15550 [2023-12-22 17:11:42,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:11:42,715 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 1161 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4334 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:11:42,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1941 Invalid, 4339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4334 Invalid, 0 Unknown, 0 Unchecked, 80.9s Time] [2023-12-22 17:11:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15550 states. [2023-12-22 17:11:42,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15550 to 15550. [2023-12-22 17:11:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15550 states, 15549 states have (on average 1.2434883272236157) internal successors, (19335), 15549 states have internal predecessors, (19335), 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) [2023-12-22 17:11:42,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15550 states to 15550 states and 19335 transitions. [2023-12-22 17:11:42,879 INFO L78 Accepts]: Start accepts. Automaton has 15550 states and 19335 transitions. Word has length 246 [2023-12-22 17:11:42,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:11:42,880 INFO L495 AbstractCegarLoop]: Abstraction has 15550 states and 19335 transitions. [2023-12-22 17:11:42,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 2 states have internal predecessors, (246), 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) [2023-12-22 17:11:42,880 INFO L276 IsEmpty]: Start isEmpty. Operand 15550 states and 19335 transitions. [2023-12-22 17:11:42,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-22 17:11:42,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:11:42,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:11:42,886 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 (7)] Forceful destruction successful, exit code 0 [2023-12-22 17:11:43,085 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 [2023-12-22 17:11:43,087 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:11:43,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:11:43,087 INFO L85 PathProgramCache]: Analyzing trace with hash -689268158, now seen corresponding path program 1 times [2023-12-22 17:11:43,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:11:43,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860432833] [2023-12-22 17:11:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:11:43,089 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 [2023-12-22 17:11:43,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:11:43,090 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) [2023-12-22 17:11:43,092 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 [2023-12-22 17:11:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:11:43,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 17:11:43,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:11:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:11:49,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:11:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:11:56,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:11:56,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860432833] [2023-12-22 17:11:56,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860432833] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 17:11:56,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 17:11:56,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 17:11:56,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047998439] [2023-12-22 17:11:56,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 17:11:56,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 17:11:56,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:11:56,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 17:11:56,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 17:11:56,476 INFO L87 Difference]: Start difference. First operand 15550 states and 19335 transitions. Second operand has 7 states, 7 states have (on average 76.42857142857143) internal successors, (535), 6 states have internal predecessors, (535), 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) [2023-12-22 17:12:17,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:12:20,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:13:57,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:14:50,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:14:54,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:16:03,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:16:28,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 17:16:30,846 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 [2023-12-22 17:16:30,847 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 17:16:30,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 17:16:30,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 17:16:30,895 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 10610 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 14156 mSolverCounterSat, 3737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 238.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10610 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 17893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3737 IncrementalHoareTripleChecker+Valid, 14156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 273.0s IncrementalHoareTripleChecker+Time [2023-12-22 17:16:30,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10610 Valid, 1376 Invalid, 17893 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3737 Valid, 14156 Invalid, 0 Unknown, 0 Unchecked, 273.0s Time] [2023-12-22 17:16:30,896 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 17:16:30,905 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 [2023-12-22 17:16:31,097 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 [2023-12-22 17:16:31,098 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (15550states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (41372 states constructed, input type IntersectNwa). [2023-12-22 17:16:31,102 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:16:31,103 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 17:16:31,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:16:31 BoogieIcfgContainer [2023-12-22 17:16:31,104 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 17:16:31,105 INFO L158 Benchmark]: Toolchain (without parser) took 875502.12ms. Allocated memory was 382.7MB in the beginning and 1.1GB in the end (delta: 751.8MB). Free memory was 300.7MB in the beginning and 835.9MB in the end (delta: -535.2MB). Peak memory consumption was 793.2MB. Max. memory is 8.0GB. [2023-12-22 17:16:31,105 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 245.4MB. Free memory is still 192.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 17:16:31,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2162.01ms. Allocated memory is still 382.7MB. Free memory was 300.7MB in the beginning and 162.8MB in the end (delta: 137.9MB). Peak memory consumption was 139.3MB. Max. memory is 8.0GB. [2023-12-22 17:16:31,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 326.05ms. Allocated memory was 382.7MB in the beginning and 567.3MB in the end (delta: 184.5MB). Free memory was 162.8MB in the beginning and 413.5MB in the end (delta: -250.6MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. [2023-12-22 17:16:31,105 INFO L158 Benchmark]: Boogie Preprocessor took 477.82ms. Allocated memory is still 567.3MB. Free memory was 413.5MB in the beginning and 415.0MB in the end (delta: -1.6MB). Peak memory consumption was 129.0MB. Max. memory is 8.0GB. [2023-12-22 17:16:31,106 INFO L158 Benchmark]: RCFGBuilder took 62670.49ms. Allocated memory was 567.3MB in the beginning and 1.1GB in the end (delta: 567.3MB). Free memory was 414.5MB in the beginning and 517.3MB in the end (delta: -102.8MB). Peak memory consumption was 475.0MB. Max. memory is 8.0GB. [2023-12-22 17:16:31,106 INFO L158 Benchmark]: TraceAbstraction took 809859.61ms. Allocated memory is still 1.1GB. Free memory was 516.7MB in the beginning and 835.9MB in the end (delta: -319.1MB). Peak memory consumption was 256.0MB. Max. memory is 8.0GB. [2023-12-22 17:16:31,107 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 245.4MB. Free memory is still 192.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2162.01ms. Allocated memory is still 382.7MB. Free memory was 300.7MB in the beginning and 162.8MB in the end (delta: 137.9MB). Peak memory consumption was 139.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 326.05ms. Allocated memory was 382.7MB in the beginning and 567.3MB in the end (delta: 184.5MB). Free memory was 162.8MB in the beginning and 413.5MB in the end (delta: -250.6MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 477.82ms. Allocated memory is still 567.3MB. Free memory was 413.5MB in the beginning and 415.0MB in the end (delta: -1.6MB). Peak memory consumption was 129.0MB. Max. memory is 8.0GB. * RCFGBuilder took 62670.49ms. Allocated memory was 567.3MB in the beginning and 1.1GB in the end (delta: 567.3MB). Free memory was 414.5MB in the beginning and 517.3MB in the end (delta: -102.8MB). Peak memory consumption was 475.0MB. Max. memory is 8.0GB. * TraceAbstraction took 809859.61ms. Allocated memory is still 1.1GB. Free memory was 516.7MB in the beginning and 835.9MB in the end (delta: -319.1MB). Peak memory consumption was 256.0MB. 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: 146]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 146). Cancelled while NwaCegarLoop was constructing difference of abstraction (15550states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (41372 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 809.8s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 788.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18551 SdHoareTripleChecker+Valid, 784.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18551 mSDsluCounter, 12961 SdHoareTripleChecker+Invalid, 660.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1751 mSDsCounter, 6788 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37345 IncrementalHoareTripleChecker+Invalid, 44133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6788 mSolverCounterUnsat, 11210 mSDtfsCounter, 37345 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1242 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15550occurred in iteration=6, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 27 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.7s InterpolantComputationTime, 972 NumberOfCodeBlocks, 972 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1238 ConstructedInterpolants, 0 QuantifiedInterpolants, 10436 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1233 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 198/222 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