/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/bitvector/jain_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 07:20:24,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 07:20:25,029 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 07:20:25,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 07:20:25,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 07:20:25,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 07:20:25,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 07:20:25,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 07:20:25,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 07:20:25,055 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 07:20:25,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 07:20:25,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 07:20:25,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 07:20:25,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 07:20:25,057 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 07:20:25,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 07:20:25,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 07:20:25,058 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 07:20:25,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 07:20:25,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 07:20:25,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 07:20:25,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 07:20:25,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 07:20:25,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 07:20:25,060 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 07:20:25,060 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 07:20:25,061 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 07:20:25,061 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 07:20:25,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 07:20:25,062 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 07:20:25,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 07:20:25,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 07:20:25,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 07:20:25,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 07:20:25,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:20:25,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 07:20:25,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 07:20:25,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 07:20:25,064 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 07:20:25,064 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 07:20:25,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 07:20:25,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 07:20:25,065 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 07:20:25,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 07:20:25,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 07:20:25,066 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 07:20:25,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 07:20:25,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 07:20:25,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 07:20:25,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 07:20:25,325 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 07:20:25,325 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 07:20:25,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_5-2.c [2023-12-16 07:20:26,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 07:20:26,797 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 07:20:26,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c [2023-12-16 07:20:26,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f46f1ac/1490637156c242339f01ae59c9ce1f4f/FLAG6dab74d56 [2023-12-16 07:20:26,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f46f1ac/1490637156c242339f01ae59c9ce1f4f [2023-12-16 07:20:26,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 07:20:26,857 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 07:20:26,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 07:20:26,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 07:20:26,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 07:20:26,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:20:26" (1/1) ... [2023-12-16 07:20:26,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3013fcd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:26, skipping insertion in model container [2023-12-16 07:20:26,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:20:26" (1/1) ... [2023-12-16 07:20:26,908 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 07:20:27,194 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c[665,678] [2023-12-16 07:20:27,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:20:27,241 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 07:20:27,255 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c[665,678] [2023-12-16 07:20:27,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 07:20:27,294 INFO L206 MainTranslator]: Completed translation [2023-12-16 07:20:27,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27 WrapperNode [2023-12-16 07:20:27,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 07:20:27,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 07:20:27,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 07:20:27,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 07:20:27,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,348 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2023-12-16 07:20:27,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 07:20:27,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 07:20:27,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 07:20:27,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 07:20:27,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,389 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,416 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 07:20:27,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 07:20:27,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 07:20:27,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 07:20:27,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 07:20:27,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (1/1) ... [2023-12-16 07:20:27,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 07:20:27,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 07:20:27,530 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 07:20:27,548 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 07:20:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 07:20:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 07:20:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 07:20:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 07:20:27,610 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 07:20:27,612 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 07:20:27,770 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 07:20:27,834 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 07:20:27,835 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 07:20:27,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:20:27 BoogieIcfgContainer [2023-12-16 07:20:27,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 07:20:27,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 07:20:27,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 07:20:27,843 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 07:20:27,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:20:26" (1/3) ... [2023-12-16 07:20:27,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41220e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:20:27, skipping insertion in model container [2023-12-16 07:20:27,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:20:27" (2/3) ... [2023-12-16 07:20:27,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41220e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:20:27, skipping insertion in model container [2023-12-16 07:20:27,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:20:27" (3/3) ... [2023-12-16 07:20:27,846 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_5-2.c [2023-12-16 07:20:27,926 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 07:20:27,926 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 07:20:27,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 07:20:27,996 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;@10de46a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 07:20:27,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 07:20:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 07:20:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-16 07:20:28,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:20:28,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-16 07:20:28,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:20:28,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:20:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1858063, now seen corresponding path program 1 times [2023-12-16 07:20:28,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:20:28,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206155432] [2023-12-16 07:20:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:20:28,018 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 07:20:28,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:20:28,020 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 07:20:28,021 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 07:20:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:20:28,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 07:20:28,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:20:28,229 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 07:20:28,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 07:20:28,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:20:28,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206155432] [2023-12-16 07:20:28,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206155432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 07:20:28,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 07:20:28,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 07:20:28,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887105367] [2023-12-16 07:20:28,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 07:20:28,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 07:20:28,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:20:28,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 07:20:28,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:20:28,346 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 07:20:28,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:20:28,397 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-16 07:20:28,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 07:20:28,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-12-16 07:20:28,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:20:28,406 INFO L225 Difference]: With dead ends: 16 [2023-12-16 07:20:28,406 INFO L226 Difference]: Without dead ends: 9 [2023-12-16 07:20:28,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 07:20:28,412 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:20:28,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:20:28,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-16 07:20:28,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-16 07:20:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 07:20:28,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-16 07:20:28,437 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-16 07:20:28,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:20:28,438 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-16 07:20:28,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 07:20:28,438 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-16 07:20:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-16 07:20:28,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:20:28,439 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-16 07:20:28,444 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 (2)] Ended with exit code 0 [2023-12-16 07:20:28,643 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 07:20:28,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:20:28,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:20:28,644 INFO L85 PathProgramCache]: Analyzing trace with hash -476212643, now seen corresponding path program 1 times [2023-12-16 07:20:28,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:20:28,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005999307] [2023-12-16 07:20:28,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 07:20:28,645 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 07:20:28,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:20:28,647 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 07:20:28,684 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 07:20:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 07:20:28,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 07:20:28,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:20:28,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:20:28,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:20:28,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:20:28,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:20:28,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005999307] [2023-12-16 07:20:28,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005999307] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:20:28,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:20:28,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-16 07:20:28,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592995869] [2023-12-16 07:20:28,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:20:28,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 07:20:28,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:20:28,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 07:20:28,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 07:20:28,872 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 07:20:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:20:29,031 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2023-12-16 07:20:29,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 07:20:29,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 7 [2023-12-16 07:20:29,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:20:29,032 INFO L225 Difference]: With dead ends: 20 [2023-12-16 07:20:29,032 INFO L226 Difference]: Without dead ends: 18 [2023-12-16 07:20:29,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-16 07:20:29,034 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 07:20:29,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 07:20:29,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-16 07:20:29,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-12-16 07:20:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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 07:20:29,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-12-16 07:20:29,039 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2023-12-16 07:20:29,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:20:29,040 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-12-16 07:20:29,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 07:20:29,040 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-12-16 07:20:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-16 07:20:29,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:20:29,041 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2023-12-16 07:20:29,048 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 07:20:29,241 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 07:20:29,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:20:29,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:20:29,243 INFO L85 PathProgramCache]: Analyzing trace with hash -726641521, now seen corresponding path program 2 times [2023-12-16 07:20:29,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:20:29,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219599752] [2023-12-16 07:20:29,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 07:20:29,244 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 07:20:29,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:20:29,247 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 07:20:29,248 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 07:20:29,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 07:20:29,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 07:20:29,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 07:20:29,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:20:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:20:29,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:20:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:20:29,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:20:29,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219599752] [2023-12-16 07:20:29,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219599752] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:20:29,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:20:29,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-16 07:20:29,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114592452] [2023-12-16 07:20:29,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:20:29,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 07:20:29,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:20:29,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 07:20:29,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-16 07:20:29,917 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 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 07:20:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:20:30,806 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-12-16 07:20:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-16 07:20:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 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 16 [2023-12-16 07:20:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:20:30,808 INFO L225 Difference]: With dead ends: 38 [2023-12-16 07:20:30,808 INFO L226 Difference]: Without dead ends: 36 [2023-12-16 07:20:30,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=230, Invalid=472, Unknown=0, NotChecked=0, Total=702 [2023-12-16 07:20:30,810 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 22 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 07:20:30,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 40 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 07:20:30,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-16 07:20:30,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2023-12-16 07:20:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 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 07:20:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2023-12-16 07:20:30,821 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 16 [2023-12-16 07:20:30,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:20:30,821 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2023-12-16 07:20:30,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 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 07:20:30,822 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2023-12-16 07:20:30,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 07:20:30,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:20:30,823 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1] [2023-12-16 07:20:30,830 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 07:20:31,025 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 07:20:31,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:20:31,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:20:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash 803030095, now seen corresponding path program 3 times [2023-12-16 07:20:31,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:20:31,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461372046] [2023-12-16 07:20:31,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 07:20:31,027 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 07:20:31,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:20:31,029 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 07:20:31,032 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 07:20:31,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-12-16 07:20:31,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 07:20:31,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-16 07:20:31,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:20:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:20:31,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:20:32,519 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:20:32,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:20:32,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461372046] [2023-12-16 07:20:32,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461372046] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:20:32,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:20:32,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-16 07:20:32,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423414295] [2023-12-16 07:20:32,520 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:20:32,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-16 07:20:32,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:20:32,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-16 07:20:32,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-12-16 07:20:32,522 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 25 states have internal predecessors, (67), 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 07:20:38,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:20:38,169 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2023-12-16 07:20:38,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-16 07:20:38,170 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 25 states have internal predecessors, (67), 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 34 [2023-12-16 07:20:38,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:20:38,171 INFO L225 Difference]: With dead ends: 74 [2023-12-16 07:20:38,171 INFO L226 Difference]: Without dead ends: 72 [2023-12-16 07:20:38,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1001, Invalid=2191, Unknown=0, NotChecked=0, Total=3192 [2023-12-16 07:20:38,174 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 24 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 07:20:38,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 147 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 07:20:38,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-16 07:20:38,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2023-12-16 07:20:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 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 07:20:38,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2023-12-16 07:20:38,190 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 34 [2023-12-16 07:20:38,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:20:38,190 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2023-12-16 07:20:38,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 25 states have internal predecessors, (67), 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 07:20:38,191 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2023-12-16 07:20:38,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 07:20:38,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:20:38,192 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1] [2023-12-16 07:20:38,196 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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 07:20:38,395 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 07:20:38,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:20:38,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:20:38,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1969892401, now seen corresponding path program 4 times [2023-12-16 07:20:38,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:20:38,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316138732] [2023-12-16 07:20:38,397 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-16 07:20:38,397 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 07:20:38,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:20:38,398 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 07:20:38,402 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 07:20:38,471 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-16 07:20:38,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 07:20:38,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-16 07:20:38,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:20:39,065 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:20:39,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 07:20:43,213 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:20:43,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 07:20:43,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316138732] [2023-12-16 07:20:43,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316138732] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 07:20:43,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 07:20:43,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 49 [2023-12-16 07:20:43,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795835747] [2023-12-16 07:20:43,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 07:20:43,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-16 07:20:43,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 07:20:43,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-16 07:20:43,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=627, Invalid=1823, Unknown=0, NotChecked=0, Total=2450 [2023-12-16 07:20:43,224 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 50 states, 50 states have (on average 2.78) internal successors, (139), 49 states have internal predecessors, (139), 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 07:21:26,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 07:21:26,313 INFO L93 Difference]: Finished difference Result 146 states and 169 transitions. [2023-12-16 07:21:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-12-16 07:21:26,313 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.78) internal successors, (139), 49 states have internal predecessors, (139), 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 70 [2023-12-16 07:21:26,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 07:21:26,316 INFO L225 Difference]: With dead ends: 146 [2023-12-16 07:21:26,316 INFO L226 Difference]: Without dead ends: 144 [2023-12-16 07:21:26,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2718 ImplicationChecksByTransitivity, 45.7s TimeCoverageRelationStatistics Valid=4163, Invalid=9409, Unknown=0, NotChecked=0, Total=13572 [2023-12-16 07:21:26,320 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 48 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 07:21:26,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 579 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 07:21:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-16 07:21:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 143. [2023-12-16 07:21:26,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 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 07:21:26,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2023-12-16 07:21:26,355 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 70 [2023-12-16 07:21:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 07:21:26,355 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2023-12-16 07:21:26,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.78) internal successors, (139), 49 states have internal predecessors, (139), 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 07:21:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2023-12-16 07:21:26,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 07:21:26,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 07:21:26,359 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 1, 1, 1] [2023-12-16 07:21:26,363 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 [2023-12-16 07:21:26,565 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 07:21:26,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 07:21:26,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 07:21:26,566 INFO L85 PathProgramCache]: Analyzing trace with hash 185709263, now seen corresponding path program 5 times [2023-12-16 07:21:26,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 07:21:26,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467497193] [2023-12-16 07:21:26,567 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-16 07:21:26,567 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 07:21:26,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 07:21:26,568 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 07:21:26,570 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 (7)] Waiting until timeout for monitored process [2023-12-16 07:21:26,988 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-12-16 07:21:26,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 07:21:26,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 98 conjunts are in the unsatisfiable core [2023-12-16 07:21:27,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 07:21:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 07:21:28,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 07:21:43,081 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 07:21:43,091 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 [2023-12-16 07:21:43,114 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 07:21:43,117 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 07:21:43,282 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 07:21:43,282 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 143 with TraceHistMax 47,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 91 known predicates. [2023-12-16 07:21:43,293 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1] [2023-12-16 07:21:43,296 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 07:21:43,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:21:43 BoogieIcfgContainer [2023-12-16 07:21:43,301 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 07:21:43,303 INFO L158 Benchmark]: Toolchain (without parser) took 76444.64ms. Allocated memory was 181.4MB in the beginning and 260.0MB in the end (delta: 78.6MB). Free memory was 129.4MB in the beginning and 157.7MB in the end (delta: -28.3MB). Peak memory consumption was 51.1MB. Max. memory is 8.0GB. [2023-12-16 07:21:43,303 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 181.4MB. Free memory was 139.3MB in the beginning and 139.2MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 07:21:43,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.44ms. Allocated memory is still 181.4MB. Free memory was 129.2MB in the beginning and 118.4MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 07:21:43,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.46ms. Allocated memory is still 181.4MB. Free memory was 118.4MB in the beginning and 116.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 07:21:43,304 INFO L158 Benchmark]: Boogie Preprocessor took 84.25ms. Allocated memory is still 181.4MB. Free memory was 116.8MB in the beginning and 115.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 07:21:43,304 INFO L158 Benchmark]: RCFGBuilder took 386.06ms. Allocated memory is still 181.4MB. Free memory was 115.3MB in the beginning and 105.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 07:21:43,313 INFO L158 Benchmark]: TraceAbstraction took 75460.49ms. Allocated memory was 181.4MB in the beginning and 260.0MB in the end (delta: 78.6MB). Free memory was 104.3MB in the beginning and 157.7MB in the end (delta: -53.5MB). Peak memory consumption was 25.9MB. Max. memory is 8.0GB. [2023-12-16 07:21:43,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 181.4MB. Free memory was 139.3MB in the beginning and 139.2MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 441.44ms. Allocated memory is still 181.4MB. Free memory was 129.2MB in the beginning and 118.4MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.46ms. Allocated memory is still 181.4MB. Free memory was 118.4MB in the beginning and 116.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.25ms. Allocated memory is still 181.4MB. Free memory was 116.8MB in the beginning and 115.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 386.06ms. Allocated memory is still 181.4MB. Free memory was 115.3MB in the beginning and 105.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 75460.49ms. Allocated memory was 181.4MB in the beginning and 260.0MB in the end (delta: 78.6MB). Free memory was 104.3MB in the beginning and 157.7MB in the end (delta: -53.5MB). Peak memory consumption was 25.9MB. 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: 16]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 16). Cancelled while NwaCegarLoop was analyzing trace of length 143 with TraceHistMax 47,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 91 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.3s, OverallIterations: 6, TraceHistogramMax: 47, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 50.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 786 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 738 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1550 IncrementalHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 48 mSDtfsCounter, 1550 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3402 ImplicationChecksByTransitivity, 53.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=5, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 1823 SizeOfPredicates, 10 NumberOfNonLiveVariables, 322 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1840 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