/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.circular_pointer_top_w32_d8_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 21:38:33,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 21:38:33,879 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 21:38:33,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 21:38:33,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 21:38:33,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 21:38:33,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 21:38:33,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 21:38:33,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 21:38:33,913 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 21:38:33,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 21:38:33,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 21:38:33,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 21:38:33,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 21:38:33,915 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 21:38:33,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 21:38:33,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 21:38:33,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 21:38:33,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 21:38:33,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 21:38:33,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 21:38:33,917 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 21:38:33,917 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 21:38:33,917 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 21:38:33,917 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 21:38:33,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 21:38:33,917 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 21:38:33,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 21:38:33,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 21:38:33,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 21:38:33,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 21:38:33,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:38:33,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 21:38:33,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 21:38:33,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 21:38:33,919 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 21:38:33,920 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 21:38:33,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 21:38:33,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 21:38:33,920 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 21:38:33,921 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 21:38:33,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 21:38:33,921 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 21:38:33,921 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 21:38:34,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 21:38:34,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 21:38:34,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 21:38:34,107 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 21:38:34,107 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 21:38:34,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d8_e0.c [2023-12-16 21:38:35,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 21:38:35,325 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 21:38:35,326 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d8_e0.c [2023-12-16 21:38:35,336 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e87560189/2a61c0823e2c44a0bc16915da9ce2aa5/FLAG92390f41c [2023-12-16 21:38:35,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e87560189/2a61c0823e2c44a0bc16915da9ce2aa5 [2023-12-16 21:38:35,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 21:38:35,351 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 21:38:35,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 21:38:35,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 21:38:35,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 21:38:35,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3376cb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35, skipping insertion in model container [2023-12-16 21:38:35,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,397 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 21:38:35,502 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.circular_pointer_top_w32_d8_e0.c[1279,1292] [2023-12-16 21:38:35,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:38:35,611 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 21:38:35,620 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.circular_pointer_top_w32_d8_e0.c[1279,1292] [2023-12-16 21:38:35,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:38:35,703 INFO L206 MainTranslator]: Completed translation [2023-12-16 21:38:35,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35 WrapperNode [2023-12-16 21:38:35,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 21:38:35,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 21:38:35,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 21:38:35,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 21:38:35,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,760 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 641 [2023-12-16 21:38:35,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 21:38:35,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 21:38:35,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 21:38:35,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 21:38:35,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,792 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 21:38:35,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 21:38:35,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 21:38:35,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 21:38:35,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 21:38:35,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (1/1) ... [2023-12-16 21:38:35,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:38:35,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 21:38:35,863 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 21:38:35,882 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 21:38:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 21:38:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 21:38:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 21:38:35,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 21:38:35,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 21:38:35,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 21:38:36,049 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 21:38:36,050 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 21:38:36,490 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 21:38:36,525 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 21:38:36,525 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 21:38:36,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:38:36 BoogieIcfgContainer [2023-12-16 21:38:36,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 21:38:36,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 21:38:36,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 21:38:36,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 21:38:36,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:38:35" (1/3) ... [2023-12-16 21:38:36,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb92776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:38:36, skipping insertion in model container [2023-12-16 21:38:36,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:38:35" (2/3) ... [2023-12-16 21:38:36,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb92776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:38:36, skipping insertion in model container [2023-12-16 21:38:36,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:38:36" (3/3) ... [2023-12-16 21:38:36,532 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w32_d8_e0.c [2023-12-16 21:38:36,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 21:38:36,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 21:38:36,575 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 21:38:36,579 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;@5d0d9b0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 21:38:36,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 21:38:36,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 21:38:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-16 21:38:36,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:38:36,590 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 21:38:36,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:38:36,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:38:36,594 INFO L85 PathProgramCache]: Analyzing trace with hash -311484247, now seen corresponding path program 1 times [2023-12-16 21:38:36,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:38:36,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90472457] [2023-12-16 21:38:36,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:38:36,604 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 21:38:36,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:38:36,607 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 21:38:36,639 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 21:38:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:38:36,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 21:38:36,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:36,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 21:38:36,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:38:36,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:38:36,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90472457] [2023-12-16 21:38:36,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90472457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:38:36,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:38:36,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 21:38:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729640832] [2023-12-16 21:38:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:38:36,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 21:38:36,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:38:36,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 21:38:36,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 21:38:36,869 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 21:38:36,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:38:36,887 INFO L93 Difference]: Finished difference Result 33 states and 47 transitions. [2023-12-16 21:38:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 21:38:36,889 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2023-12-16 21:38:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:38:36,893 INFO L225 Difference]: With dead ends: 33 [2023-12-16 21:38:36,893 INFO L226 Difference]: Without dead ends: 16 [2023-12-16 21:38:36,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 21:38:36,900 INFO L413 NwaCegarLoop]: 17 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, 17 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 21:38:36,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 21:38:36,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-16 21:38:36,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-12-16 21:38:36,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 21:38:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-12-16 21:38:36,924 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 22 [2023-12-16 21:38:36,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:38:36,924 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-12-16 21:38:36,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 21:38:36,925 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-16 21:38:36,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-16 21:38:36,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:38:36,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 21:38:36,932 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 21:38:37,129 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 21:38:37,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:38:37,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:38:37,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1990205213, now seen corresponding path program 1 times [2023-12-16 21:38:37,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:38:37,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175682633] [2023-12-16 21:38:37,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:38:37,131 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 21:38:37,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:38:37,132 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 21:38:37,133 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 21:38:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:38:37,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 21:38:37,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 21:38:37,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:38:37,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:38:37,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175682633] [2023-12-16 21:38:37,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175682633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:38:37,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:38:37,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 21:38:37,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005979405] [2023-12-16 21:38:37,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:38:37,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 21:38:37,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:38:37,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 21:38:37,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 21:38:37,389 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 21:38:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:38:37,472 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2023-12-16 21:38:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 21:38:37,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2023-12-16 21:38:37,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:38:37,473 INFO L225 Difference]: With dead ends: 27 [2023-12-16 21:38:37,473 INFO L226 Difference]: Without dead ends: 25 [2023-12-16 21:38:37,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 21:38:37,474 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 21:38:37,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 21:38:37,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-16 21:38:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-12-16 21:38:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-16 21:38:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2023-12-16 21:38:37,479 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 22 [2023-12-16 21:38:37,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:38:37,480 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2023-12-16 21:38:37,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 21:38:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-12-16 21:38:37,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 21:38:37,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:38:37,481 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-16 21:38:37,488 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 21:38:37,684 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 21:38:37,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:38:37,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:38:37,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1333456143, now seen corresponding path program 1 times [2023-12-16 21:38:37,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:38:37,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478187164] [2023-12-16 21:38:37,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:38:37,687 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 21:38:37,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:38:37,687 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 21:38:37,697 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 21:38:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:38:38,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 62 conjunts are in the unsatisfiable core [2023-12-16 21:38:38,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:38,702 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 21:38:38,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:38:39,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:38:39,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478187164] [2023-12-16 21:38:39,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478187164] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:38:39,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1531003100] [2023-12-16 21:38:39,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:38:39,186 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 21:38:39,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 21:38:39,193 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 21:38:39,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-16 21:38:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:38:39,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 21:38:39,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 21:38:39,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:38:40,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1531003100] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:38:40,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 21:38:40,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 21:38:40,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207247995] [2023-12-16 21:38:40,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 21:38:40,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 21:38:40,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:38:40,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 21:38:40,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-12-16 21:38:40,044 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-16 21:38:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:38:40,477 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2023-12-16 21:38:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 21:38:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) Word has length 43 [2023-12-16 21:38:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:38:40,478 INFO L225 Difference]: With dead ends: 36 [2023-12-16 21:38:40,478 INFO L226 Difference]: Without dead ends: 34 [2023-12-16 21:38:40,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2023-12-16 21:38:40,479 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 21:38:40,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 83 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 21:38:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-16 21:38:40,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-12-16 21:38:40,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 21:38:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2023-12-16 21:38:40,487 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 43 [2023-12-16 21:38:40,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:38:40,488 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2023-12-16 21:38:40,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 13 states have internal predecessors, (30), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-16 21:38:40,488 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-12-16 21:38:40,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 21:38:40,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:38:40,491 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2023-12-16 21:38:40,500 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 21:38:40,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-16 21:38:40,900 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 21:38:40,900 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:38:40,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:38:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1547916707, now seen corresponding path program 2 times [2023-12-16 21:38:40,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:38:40,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127796280] [2023-12-16 21:38:40,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 21:38:40,902 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 21:38:40,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:38:40,903 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 21:38:40,907 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 21:38:41,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 21:38:41,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:38:41,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 173 conjunts are in the unsatisfiable core [2023-12-16 21:38:41,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:45,460 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 15 proven. 64 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-16 21:38:45,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:38:46,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:38:46,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127796280] [2023-12-16 21:38:46,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127796280] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:38:46,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1314247875] [2023-12-16 21:38:46,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 21:38:46,055 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 21:38:46,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 21:38:46,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 21:38:46,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-16 21:38:46,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 21:38:46,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:38:46,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 161 conjunts are in the unsatisfiable core [2023-12-16 21:38:46,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:38:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 12 proven. 55 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-16 21:38:49,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:38:50,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1314247875] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:38:50,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 21:38:50,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 21 [2023-12-16 21:38:50,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443097611] [2023-12-16 21:38:50,779 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 21:38:50,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-16 21:38:50,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:38:50,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-16 21:38:50,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2023-12-16 21:38:50,781 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 21 states, 16 states have (on average 2.625) internal successors, (42), 21 states have internal predecessors, (42), 11 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 11 states have call successors, (18) [2023-12-16 21:38:55,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 21:38:55,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:38:55,965 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2023-12-16 21:38:55,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 21:38:55,966 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.625) internal successors, (42), 21 states have internal predecessors, (42), 11 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 11 states have call successors, (18) Word has length 64 [2023-12-16 21:38:55,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:38:55,967 INFO L225 Difference]: With dead ends: 45 [2023-12-16 21:38:55,967 INFO L226 Difference]: Without dead ends: 43 [2023-12-16 21:38:55,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 106 SyntacticMatches, 7 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=180, Invalid=942, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 21:38:55,968 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 37 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 21:38:55,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 163 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 317 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 21:38:55,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-16 21:38:55,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2023-12-16 21:38:55,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-16 21:38:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2023-12-16 21:38:55,977 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 64 [2023-12-16 21:38:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:38:55,978 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2023-12-16 21:38:55,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.625) internal successors, (42), 21 states have internal predecessors, (42), 11 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 8 states have call predecessors, (18), 11 states have call successors, (18) [2023-12-16 21:38:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-12-16 21:38:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 21:38:55,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:38:55,979 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1] [2023-12-16 21:38:55,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-16 21:38:56,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 21:38:56,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 21:38:56,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:38:56,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:38:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash 375264817, now seen corresponding path program 3 times [2023-12-16 21:38:56,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:38:56,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137160981] [2023-12-16 21:38:56,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-16 21:38:56,389 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 21:38:56,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:38:56,390 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:38:56,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 21:38:58,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-16 21:38:58,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:38:58,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 425 conjunts are in the unsatisfiable core [2023-12-16 21:38:58,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 21:39:46,807 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 21:39:46,816 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:39:46,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 21:39:46,841 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 21:39:47,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:39:47,010 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 86 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-8-1 context. [2023-12-16 21:39:47,018 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2023-12-16 21:39:47,022 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 21:39:47,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:39:47 BoogieIcfgContainer [2023-12-16 21:39:47,024 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 21:39:47,024 INFO L158 Benchmark]: Toolchain (without parser) took 71673.54ms. Allocated memory was 195.0MB in the beginning and 843.1MB in the end (delta: 648.0MB). Free memory was 158.8MB in the beginning and 553.9MB in the end (delta: -395.1MB). Peak memory consumption was 515.8MB. Max. memory is 8.0GB. [2023-12-16 21:39:47,026 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 195.0MB. Free memory was 152.3MB in the beginning and 152.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 21:39:47,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.27ms. Allocated memory is still 195.0MB. Free memory was 158.8MB in the beginning and 132.4MB in the end (delta: 26.4MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 21:39:47,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.16ms. Allocated memory is still 195.0MB. Free memory was 132.4MB in the beginning and 126.8MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 21:39:47,027 INFO L158 Benchmark]: Boogie Preprocessor took 78.93ms. Allocated memory is still 195.0MB. Free memory was 126.8MB in the beginning and 120.9MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 21:39:47,027 INFO L158 Benchmark]: RCFGBuilder took 685.16ms. Allocated memory was 195.0MB in the beginning and 281.0MB in the end (delta: 86.0MB). Free memory was 120.5MB in the beginning and 212.1MB in the end (delta: -91.6MB). Peak memory consumption was 32.0MB. Max. memory is 8.0GB. [2023-12-16 21:39:47,027 INFO L158 Benchmark]: TraceAbstraction took 70496.82ms. Allocated memory was 281.0MB in the beginning and 843.1MB in the end (delta: 562.0MB). Free memory was 211.1MB in the beginning and 553.9MB in the end (delta: -342.9MB). Peak memory consumption was 480.6MB. Max. memory is 8.0GB. [2023-12-16 21:39:47,029 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 195.0MB. Free memory was 152.3MB in the beginning and 152.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.27ms. Allocated memory is still 195.0MB. Free memory was 158.8MB in the beginning and 132.4MB in the end (delta: 26.4MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.16ms. Allocated memory is still 195.0MB. Free memory was 132.4MB in the beginning and 126.8MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.93ms. Allocated memory is still 195.0MB. Free memory was 126.8MB in the beginning and 120.9MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 685.16ms. Allocated memory was 195.0MB in the beginning and 281.0MB in the end (delta: 86.0MB). Free memory was 120.5MB in the beginning and 212.1MB in the end (delta: -91.6MB). Peak memory consumption was 32.0MB. Max. memory is 8.0GB. * TraceAbstraction took 70496.82ms. Allocated memory was 281.0MB in the beginning and 843.1MB in the end (delta: 562.0MB). Free memory was 211.1MB in the beginning and 553.9MB in the end (delta: -342.9MB). Peak memory consumption was 480.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 86 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-8-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.5s, OverallIterations: 5, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 296 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 495 IncrementalHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 48 mSDtfsCounter, 495 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 224 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=4, InterpolantAutomatonStates: 33, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 252 ConstructedInterpolants, 22 QuantifiedInterpolants, 6403 SizeOfPredicates, 488 NumberOfNonLiveVariables, 4482 ConjunctsInSsa, 457 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 333/498 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