/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-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 21:03:09,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 21:03:09,795 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-16 21:03:09,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 21:03:09,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 21:03:09,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 21:03:09,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 21:03:09,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 21:03:09,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 21:03:09,818 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 21:03:09,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 21:03:09,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 21:03:09,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 21:03:09,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 21:03:09,819 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 21:03:09,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 21:03:09,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 21:03:09,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 21:03:09,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 21:03:09,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 21:03:09,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 21:03:09,823 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 21:03:09,823 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 21:03:09,823 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 21:03:09,828 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 21:03:09,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 21:03:09,828 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 21:03:09,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 21:03:09,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 21:03:09,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 21:03:09,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 21:03:09,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:03:09,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 21:03:09,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 21:03:09,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 21:03:09,829 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 21:03:09,830 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 21:03:09,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 21:03:09,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 21:03:09,830 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 21:03:09,830 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 21:03:09,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 21:03:09,831 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 21:03:09,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 21:03:10,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 21:03:10,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 21:03:10,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 21:03:10,041 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 21:03:10,041 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 21:03:10,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c [2023-12-16 21:03:11,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 21:03:11,378 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 21:03:11,380 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c [2023-12-16 21:03:11,408 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/030a76f4b/3fdcbbd6a03d415095bada4d28adbf75/FLAG3b93e9877 [2023-12-16 21:03:11,420 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/030a76f4b/3fdcbbd6a03d415095bada4d28adbf75 [2023-12-16 21:03:11,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 21:03:11,423 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 21:03:11,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 21:03:11,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 21:03:11,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 21:03:11,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:03:11" (1/1) ... [2023-12-16 21:03:11,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df2290a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:11, skipping insertion in model container [2023-12-16 21:03:11,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:03:11" (1/1) ... [2023-12-16 21:03:11,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 21:03:11,707 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c[1270,1283] [2023-12-16 21:03:12,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:03:12,137 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 21:03:12,145 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c[1270,1283] [2023-12-16 21:03:12,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:03:12,373 INFO L206 MainTranslator]: Completed translation [2023-12-16 21:03:12,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12 WrapperNode [2023-12-16 21:03:12,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 21:03:12,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 21:03:12,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 21:03:12,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 21:03:12,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,568 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6675 [2023-12-16 21:03:12,568 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 21:03:12,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 21:03:12,569 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 21:03:12,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 21:03:12,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,759 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 21:03:12,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 21:03:12,912 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 21:03:12,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 21:03:12,912 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 21:03:12,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (1/1) ... [2023-12-16 21:03:12,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:03:12,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 21:03:12,933 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 21:03:12,943 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 21:03:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 21:03:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 21:03:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 21:03:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 21:03:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 21:03:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 21:03:13,621 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 21:03:13,623 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 21:03:21,184 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 21:03:21,433 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 21:03:21,434 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 21:03:21,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:03:21 BoogieIcfgContainer [2023-12-16 21:03:21,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 21:03:21,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 21:03:21,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 21:03:21,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 21:03:21,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:03:11" (1/3) ... [2023-12-16 21:03:21,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d287355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:03:21, skipping insertion in model container [2023-12-16 21:03:21,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:03:12" (2/3) ... [2023-12-16 21:03:21,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d287355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:03:21, skipping insertion in model container [2023-12-16 21:03:21,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:03:21" (3/3) ... [2023-12-16 21:03:21,439 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w8_d64_e0.c [2023-12-16 21:03:21,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 21:03:21,450 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 21:03:21,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 21:03:21,484 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;@7b48848a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 21:03:21,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 21:03:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 21:03:21,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 21:03:21,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:03:21,493 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 21:03:21,493 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:03:21,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:03:21,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1229239407, now seen corresponding path program 1 times [2023-12-16 21:03:21,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:03:21,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385119029] [2023-12-16 21:03:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:03:21,507 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 21:03:21,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:03:21,509 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 21:03:21,517 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 21:03:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:03:22,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 2238 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 21:03:22,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:03:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-12-16 21:03:22,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:03:22,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:03:22,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385119029] [2023-12-16 21:03:22,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385119029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:03:22,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:03:22,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 21:03:22,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636317688] [2023-12-16 21:03:22,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:03:22,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 21:03:22,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:03:22,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 21:03:22,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 21:03:22,985 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 21:03:23,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:03:23,033 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2023-12-16 21:03:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 21:03:23,040 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 64 [2023-12-16 21:03:23,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:03:23,044 INFO L225 Difference]: With dead ends: 61 [2023-12-16 21:03:23,044 INFO L226 Difference]: Without dead ends: 30 [2023-12-16 21:03:23,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 21:03:23,049 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 21:03:23,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 21:03:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-16 21:03:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-16 21:03:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-16 21:03:23,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-12-16 21:03:23,076 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 64 [2023-12-16 21:03:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:03:23,076 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-12-16 21:03:23,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 21:03:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-12-16 21:03:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 21:03:23,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:03:23,078 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 21:03:23,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 21:03:23,287 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 21:03:23,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:03:23,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:03:23,288 INFO L85 PathProgramCache]: Analyzing trace with hash -148556931, now seen corresponding path program 1 times [2023-12-16 21:03:23,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:03:23,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922773349] [2023-12-16 21:03:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:03:23,290 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 21:03:23,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:03:23,291 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 21:03:23,292 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 21:03:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:03:27,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 2238 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 21:03:27,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:03:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-16 21:03:27,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:03:27,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:03:27,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922773349] [2023-12-16 21:03:27,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922773349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:03:27,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:03:27,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 21:03:27,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071160369] [2023-12-16 21:03:27,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:03:27,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 21:03:27,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:03:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 21:03:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 21:03:27,727 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 21:03:29,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 21:03:29,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:03:29,326 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2023-12-16 21:03:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 21:03:29,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 64 [2023-12-16 21:03:29,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:03:29,328 INFO L225 Difference]: With dead ends: 55 [2023-12-16 21:03:29,328 INFO L226 Difference]: Without dead ends: 53 [2023-12-16 21:03:29,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 21:03:29,329 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 21:03:29,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 75 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 21:03:29,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-16 21:03:29,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2023-12-16 21:03:29,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 21:03:29,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2023-12-16 21:03:29,340 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 64 [2023-12-16 21:03:29,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:03:29,341 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2023-12-16 21:03:29,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 21:03:29,342 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2023-12-16 21:03:29,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 21:03:29,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:03:29,343 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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] [2023-12-16 21:03:29,361 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 [2023-12-16 21:03:29,558 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 21:03:29,559 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:03:29,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:03:29,559 INFO L85 PathProgramCache]: Analyzing trace with hash -438810163, now seen corresponding path program 1 times [2023-12-16 21:03:29,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:03:29,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644552902] [2023-12-16 21:03:29,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:03:29,565 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 21:03:29,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:03:29,566 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 21:03:29,566 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 21:04:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:04:20,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 7725 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 21:04:20,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:04:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 18 proven. 61 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 21:04:21,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:04:21,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:04:21,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644552902] [2023-12-16 21:04:21,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644552902] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:04:21,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1308467223] [2023-12-16 21:04:21,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:04:21,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 21:04:21,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 21:04:21,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 21:04:21,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 21:04:24,213 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:04:24,220 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 21:04:24,220 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:04:25,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 21:04:25,264 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 21:04:25,432 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forcibly destroying the process [2023-12-16 21:04:25,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 137 [2023-12-16 21:04:25,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 21:04:25,451 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 21:04:25,452 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 128 with TraceHistMax 20,while AutomatonFreeRefinementEngine was Timeout during proof generation before using IpTcStrategyModuleZ3 [916787865]. [2023-12-16 21:04:25,454 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 21:04:25,456 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 21:04:25,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:04:25 BoogieIcfgContainer [2023-12-16 21:04:25,457 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 21:04:25,458 INFO L158 Benchmark]: Toolchain (without parser) took 74034.65ms. Allocated memory was 263.2MB in the beginning and 822.1MB in the end (delta: 558.9MB). Free memory was 201.7MB in the beginning and 605.4MB in the end (delta: -403.7MB). Peak memory consumption was 572.0MB. Max. memory is 8.0GB. [2023-12-16 21:04:25,458 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 173.0MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 21:04:25,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 950.05ms. Allocated memory is still 263.2MB. Free memory was 201.7MB in the beginning and 165.0MB in the end (delta: 36.7MB). Peak memory consumption was 106.9MB. Max. memory is 8.0GB. [2023-12-16 21:04:25,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 192.60ms. Allocated memory is still 263.2MB. Free memory was 165.0MB in the beginning and 118.3MB in the end (delta: 46.7MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. [2023-12-16 21:04:25,458 INFO L158 Benchmark]: Boogie Preprocessor took 342.12ms. Allocated memory was 263.2MB in the beginning and 475.0MB in the end (delta: 211.8MB). Free memory was 118.3MB in the beginning and 331.1MB in the end (delta: -212.8MB). Peak memory consumption was 46.7MB. Max. memory is 8.0GB. [2023-12-16 21:04:25,459 INFO L158 Benchmark]: RCFGBuilder took 8522.27ms. Allocated memory was 475.0MB in the beginning and 822.1MB in the end (delta: 347.1MB). Free memory was 331.1MB in the beginning and 676.1MB in the end (delta: -345.0MB). Peak memory consumption was 488.1MB. Max. memory is 8.0GB. [2023-12-16 21:04:25,459 INFO L158 Benchmark]: TraceAbstraction took 64021.71ms. Allocated memory is still 822.1MB. Free memory was 675.6MB in the beginning and 605.4MB in the end (delta: 70.2MB). Peak memory consumption was 486.5MB. Max. memory is 8.0GB. [2023-12-16 21:04:25,460 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 173.0MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 950.05ms. Allocated memory is still 263.2MB. Free memory was 201.7MB in the beginning and 165.0MB in the end (delta: 36.7MB). Peak memory consumption was 106.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 192.60ms. Allocated memory is still 263.2MB. Free memory was 165.0MB in the beginning and 118.3MB in the end (delta: 46.7MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 342.12ms. Allocated memory was 263.2MB in the beginning and 475.0MB in the end (delta: 211.8MB). Free memory was 118.3MB in the beginning and 331.1MB in the end (delta: -212.8MB). Peak memory consumption was 46.7MB. Max. memory is 8.0GB. * RCFGBuilder took 8522.27ms. Allocated memory was 475.0MB in the beginning and 822.1MB in the end (delta: 347.1MB). Free memory was 331.1MB in the beginning and 676.1MB in the end (delta: -345.0MB). Peak memory consumption was 488.1MB. Max. memory is 8.0GB. * TraceAbstraction took 64021.71ms. Allocated memory is still 822.1MB. Free memory was 675.6MB in the beginning and 605.4MB in the end (delta: 70.2MB). Peak memory consumption was 486.5MB. 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: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 128 with TraceHistMax 20,while AutomatonFreeRefinementEngine was Timeout during proof generation before using IpTcStrategyModuleZ3 [916787865]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.0s, OverallIterations: 3, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 63 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 12 NumberOfNonLiveVariables, 4476 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 360/360 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