/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 19:56:19,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 19:56:19,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 19:56:19,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 19:56:19,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 19:56:19,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 19:56:19,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 19:56:19,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 19:56:19,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 19:56:19,996 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 19:56:19,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 19:56:19,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 19:56:19,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 19:56:19,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 19:56:19,999 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 19:56:20,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 19:56:20,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 19:56:20,000 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 19:56:20,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 19:56:20,001 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 19:56:20,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 19:56:20,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 19:56:20,002 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 19:56:20,003 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 19:56:20,003 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 19:56:20,003 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 19:56:20,003 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 19:56:20,004 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 19:56:20,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 19:56:20,004 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 19:56:20,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 19:56:20,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 19:56:20,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 19:56:20,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 19:56:20,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 19:56:20,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 19:56:20,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 19:56:20,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 19:56:20,007 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 19:56:20,007 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 19:56:20,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 19:56:20,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 19:56:20,008 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 19:56:20,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 19:56:20,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 19:56:20,009 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 19:56:20,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 19:56:20,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 19:56:20,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 19:56:20,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 19:56:20,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 19:56:20,251 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 19:56:20,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2023-12-23 19:56:21,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 19:56:21,614 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 19:56:21,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2023-12-23 19:56:21,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04de7f56/27026965e6494f06af8008bce47bfa87/FLAG0a0164cb9 [2023-12-23 19:56:21,633 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04de7f56/27026965e6494f06af8008bce47bfa87 [2023-12-23 19:56:21,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 19:56:21,637 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 19:56:21,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 19:56:21,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 19:56:21,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 19:56:21,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca5079a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21, skipping insertion in model container [2023-12-23 19:56:21,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,665 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 19:56:21,798 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i[916,929] [2023-12-23 19:56:21,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 19:56:21,848 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 19:56:21,860 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i[916,929] [2023-12-23 19:56:21,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 19:56:21,901 INFO L206 MainTranslator]: Completed translation [2023-12-23 19:56:21,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21 WrapperNode [2023-12-23 19:56:21,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 19:56:21,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 19:56:21,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 19:56:21,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 19:56:21,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,943 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-12-23 19:56:21,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 19:56:21,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 19:56:21,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 19:56:21,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 19:56:21,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,972 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]. [2023-12-23 19:56:21,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 19:56:21,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 19:56:21,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 19:56:21,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 19:56:21,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (1/1) ... [2023-12-23 19:56:21,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 19:56:22,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 19:56:22,025 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) [2023-12-23 19:56:22,054 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 [2023-12-23 19:56:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 19:56:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 19:56:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 19:56:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 19:56:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 19:56:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 19:56:22,168 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 19:56:22,170 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 19:56:22,627 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 19:56:22,660 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 19:56:22,660 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 19:56:22,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:56:22 BoogieIcfgContainer [2023-12-23 19:56:22,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 19:56:22,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 19:56:22,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 19:56:22,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 19:56:22,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:56:21" (1/3) ... [2023-12-23 19:56:22,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc8bf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:56:22, skipping insertion in model container [2023-12-23 19:56:22,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:56:21" (2/3) ... [2023-12-23 19:56:22,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc8bf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:56:22, skipping insertion in model container [2023-12-23 19:56:22,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:56:22" (3/3) ... [2023-12-23 19:56:22,669 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-37.i [2023-12-23 19:56:22,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 19:56:22,718 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 19:56:22,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 19:56:22,781 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;@3dbbfbcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 19:56:22,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 19:56:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-23 19:56:22,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-23 19:56:22,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:56:22,793 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:56:22,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:56:22,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:56:22,797 INFO L85 PathProgramCache]: Analyzing trace with hash 208737381, now seen corresponding path program 1 times [2023-12-23 19:56:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:56:22,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889085844] [2023-12-23 19:56:22,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:56:22,807 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 [2023-12-23 19:56:22,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:56:22,809 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) [2023-12-23 19:56:22,810 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 [2023-12-23 19:56:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:56:22,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 19:56:22,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:56:22,983 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-23 19:56:22,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:56:22,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:56:22,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889085844] [2023-12-23 19:56:22,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889085844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:56:22,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:56:22,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 19:56:22,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112918502] [2023-12-23 19:56:22,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:56:22,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 19:56:22,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:56:23,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 19:56:23,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 19:56:23,026 INFO L87 Difference]: Start difference. First operand has 43 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-23 19:56:23,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:56:23,145 INFO L93 Difference]: Finished difference Result 83 states and 144 transitions. [2023-12-23 19:56:23,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 19:56:23,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 98 [2023-12-23 19:56:23,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:56:23,157 INFO L225 Difference]: With dead ends: 83 [2023-12-23 19:56:23,158 INFO L226 Difference]: Without dead ends: 41 [2023-12-23 19:56:23,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 19:56:23,163 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 19:56:23,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 19:56:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-23 19:56:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-12-23 19:56:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-23 19:56:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions. [2023-12-23 19:56:23,193 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 98 [2023-12-23 19:56:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:56:23,193 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 60 transitions. [2023-12-23 19:56:23,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-23 19:56:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2023-12-23 19:56:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-23 19:56:23,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:56:23,197 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:56:23,207 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 [2023-12-23 19:56:23,407 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 [2023-12-23 19:56:23,408 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:56:23,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:56:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2113811557, now seen corresponding path program 1 times [2023-12-23 19:56:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:56:23,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641331042] [2023-12-23 19:56:23,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:56:23,410 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 [2023-12-23 19:56:23,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:56:23,411 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) [2023-12-23 19:56:23,412 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 [2023-12-23 19:56:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:56:23,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 19:56:23,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:56:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 222 proven. 69 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-12-23 19:56:23,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 19:56:24,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:56:24,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641331042] [2023-12-23 19:56:24,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641331042] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 19:56:24,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1997569507] [2023-12-23 19:56:24,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:56:24,220 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 19:56:24,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 19:56:24,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 19:56:24,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 19:56:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:56:24,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 19:56:24,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:56:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 222 proven. 69 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-12-23 19:56:24,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 19:56:24,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1997569507] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 19:56:24,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 19:56:24,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-12-23 19:56:24,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557550360] [2023-12-23 19:56:24,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 19:56:24,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 19:56:24,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:56:24,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 19:56:24,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-23 19:56:24,897 INFO L87 Difference]: Start difference. First operand 41 states and 60 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-23 19:56:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:56:25,914 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2023-12-23 19:56:25,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-23 19:56:25,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 98 [2023-12-23 19:56:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:56:25,920 INFO L225 Difference]: With dead ends: 93 [2023-12-23 19:56:25,920 INFO L226 Difference]: Without dead ends: 53 [2023-12-23 19:56:25,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-23 19:56:25,922 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-23 19:56:25,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 116 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-23 19:56:25,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-23 19:56:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2023-12-23 19:56:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-23 19:56:25,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2023-12-23 19:56:25,933 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 98 [2023-12-23 19:56:25,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:56:25,933 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2023-12-23 19:56:25,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-23 19:56:25,934 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-12-23 19:56:25,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-23 19:56:25,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:56:25,936 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:56:25,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-23 19:56:26,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-23 19:56:26,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-23 19:56:26,340 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:56:26,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:56:26,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1304464931, now seen corresponding path program 1 times [2023-12-23 19:56:26,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:56:26,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166142590] [2023-12-23 19:56:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:56:26,342 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 [2023-12-23 19:56:26,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:56:26,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 19:56:26,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 19:56:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:56:26,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-23 19:56:26,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:56:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 242 proven. 114 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-23 19:56:27,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 19:56:30,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:56:30,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166142590] [2023-12-23 19:56:30,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166142590] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 19:56:30,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1550307893] [2023-12-23 19:56:30,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:56:30,803 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 19:56:30,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 19:56:30,805 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 19:56:30,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 19:56:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:56:31,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-23 19:56:31,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:58:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 312 proven. 93 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-23 19:58:40,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 20:08:18,134 WARN L293 SmtUtils]: Spent 32.78s on a formula simplification that was a NOOP. DAG size: 412 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 20:08:59,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1550307893] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 20:08:59,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 20:08:59,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 23] total 32 [2023-12-23 20:08:59,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886656045] [2023-12-23 20:08:59,940 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 20:08:59,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-23 20:08:59,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 20:08:59,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-23 20:08:59,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1703, Unknown=0, NotChecked=0, Total=2070 [2023-12-23 20:08:59,943 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand has 32 states, 32 states have (on average 2.125) internal successors, (68), 29 states have internal predecessors, (68), 9 states have call successors, (28), 9 states have call predecessors, (28), 12 states have return successors, (29), 8 states have call predecessors, (29), 9 states have call successors, (29) [2023-12-23 20:09:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 20:09:24,374 INFO L93 Difference]: Finished difference Result 124 states and 153 transitions. [2023-12-23 20:09:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-23 20:09:24,383 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.125) internal successors, (68), 29 states have internal predecessors, (68), 9 states have call successors, (28), 9 states have call predecessors, (28), 12 states have return successors, (29), 8 states have call predecessors, (29), 9 states have call successors, (29) Word has length 98 [2023-12-23 20:09:24,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 20:09:24,385 INFO L225 Difference]: With dead ends: 124 [2023-12-23 20:09:24,385 INFO L226 Difference]: Without dead ends: 76 [2023-12-23 20:09:24,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 80.0s TimeCoverageRelationStatistics Valid=861, Invalid=3299, Unknown=0, NotChecked=0, Total=4160 [2023-12-23 20:09:24,388 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 109 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-23 20:09:24,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 245 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-23 20:09:24,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-23 20:09:24,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 67. [2023-12-23 20:09:24,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.069767441860465) internal successors, (46), 43 states have internal predecessors, (46), 16 states have call successors, (16), 7 states have call predecessors, (16), 7 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-23 20:09:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2023-12-23 20:09:24,398 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 78 transitions. Word has length 98 [2023-12-23 20:09:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 20:09:24,399 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 78 transitions. [2023-12-23 20:09:24,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.125) internal successors, (68), 29 states have internal predecessors, (68), 9 states have call successors, (28), 9 states have call predecessors, (28), 12 states have return successors, (29), 8 states have call predecessors, (29), 9 states have call successors, (29) [2023-12-23 20:09:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 78 transitions. [2023-12-23 20:09:24,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-23 20:09:24,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 20:09:24,401 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 20:09:24,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 20:09:24,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 20:09:24,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 20:09:24,802 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 20:09:24,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 20:09:24,803 INFO L85 PathProgramCache]: Analyzing trace with hash -736344021, now seen corresponding path program 1 times [2023-12-23 20:09:24,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 20:09:24,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284202032] [2023-12-23 20:09:24,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 20:09:24,803 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 [2023-12-23 20:09:24,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 20:09:24,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 20:09:24,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 20:09:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 20:09:24,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 20:09:24,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 20:09:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 303 proven. 45 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-23 20:09:28,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 20:09:29,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 20:09:29,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284202032] [2023-12-23 20:09:29,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284202032] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 20:09:29,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1500900479] [2023-12-23 20:09:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 20:09:29,928 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 20:09:29,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 20:09:29,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 20:09:29,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 20:09:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 20:09:30,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-23 20:09:30,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 20:09:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 303 proven. 45 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-23 20:09:32,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 20:09:34,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1500900479] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 20:09:34,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 20:09:34,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2023-12-23 20:09:34,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646552083] [2023-12-23 20:09:34,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 20:09:34,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-23 20:09:34,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 20:09:34,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-23 20:09:34,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-23 20:09:34,300 INFO L87 Difference]: Start difference. First operand 67 states and 78 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-23 20:09:38,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 20:09:38,803 INFO L93 Difference]: Finished difference Result 173 states and 196 transitions. [2023-12-23 20:09:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-23 20:09:38,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 99 [2023-12-23 20:09:38,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 20:09:38,807 INFO L225 Difference]: With dead ends: 173 [2023-12-23 20:09:38,807 INFO L226 Difference]: Without dead ends: 107 [2023-12-23 20:09:38,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2023-12-23 20:09:38,809 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 52 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-23 20:09:38,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 138 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-23 20:09:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-23 20:09:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 75. [2023-12-23 20:09:38,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 49 states have internal predecessors, (51), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-23 20:09:38,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2023-12-23 20:09:38,820 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 99 [2023-12-23 20:09:38,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 20:09:38,821 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2023-12-23 20:09:38,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-23 20:09:38,821 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2023-12-23 20:09:38,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-23 20:09:38,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 20:09:38,823 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 20:09:38,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 20:09:39,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 20:09:39,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 20:09:39,228 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 20:09:39,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 20:09:39,228 INFO L85 PathProgramCache]: Analyzing trace with hash -736403603, now seen corresponding path program 1 times [2023-12-23 20:09:39,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 20:09:39,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106542347] [2023-12-23 20:09:39,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 20:09:39,229 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 [2023-12-23 20:09:39,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 20:09:39,230 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 20:09:39,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-23 20:09:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 20:09:39,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-23 20:09:39,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 20:10:51,134 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 20:10:51,134 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 [2023-12-23 20:10:51,140 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 (9)] Forceful destruction successful, exit code 0 [2023-12-23 20:10:51,151 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 20:10:51,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 20:10:51,341 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 100 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-37-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2023-12-23 20:10:51,346 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-23 20:10:51,348 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 20:10:51,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 08:10:51 BoogieIcfgContainer [2023-12-23 20:10:51,350 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 20:10:51,350 INFO L158 Benchmark]: Toolchain (without parser) took 869713.66ms. Allocated memory was 310.4MB in the beginning and 1.0GB in the end (delta: 692.1MB). Free memory was 259.2MB in the beginning and 957.1MB in the end (delta: -697.9MB). Peak memory consumption was 590.8MB. Max. memory is 8.0GB. [2023-12-23 20:10:51,350 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 210.8MB. Free memory was 161.3MB in the beginning and 161.2MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 20:10:51,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.43ms. Allocated memory is still 310.4MB. Free memory was 259.2MB in the beginning and 245.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-23 20:10:51,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.77ms. Allocated memory is still 310.4MB. Free memory was 245.9MB in the beginning and 243.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 20:10:51,351 INFO L158 Benchmark]: Boogie Preprocessor took 43.77ms. Allocated memory is still 310.4MB. Free memory was 243.8MB in the beginning and 241.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 20:10:51,352 INFO L158 Benchmark]: RCFGBuilder took 672.02ms. Allocated memory is still 310.4MB. Free memory was 240.9MB in the beginning and 222.8MB in the end (delta: 18.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 20:10:51,352 INFO L158 Benchmark]: TraceAbstraction took 868686.49ms. Allocated memory was 310.4MB in the beginning and 1.0GB in the end (delta: 692.1MB). Free memory was 222.3MB in the beginning and 957.1MB in the end (delta: -734.8MB). Peak memory consumption was 554.1MB. Max. memory is 8.0GB. [2023-12-23 20:10:51,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 210.8MB. Free memory was 161.3MB in the beginning and 161.2MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 263.43ms. Allocated memory is still 310.4MB. Free memory was 259.2MB in the beginning and 245.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.77ms. Allocated memory is still 310.4MB. Free memory was 245.9MB in the beginning and 243.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.77ms. Allocated memory is still 310.4MB. Free memory was 243.8MB in the beginning and 241.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 672.02ms. Allocated memory is still 310.4MB. Free memory was 240.9MB in the beginning and 222.8MB in the end (delta: 18.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 868686.49ms. Allocated memory was 310.4MB in the beginning and 1.0GB in the end (delta: 692.1MB). Free memory was 222.3MB in the beginning and 957.1MB in the end (delta: -734.8MB). Peak memory consumption was 554.1MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 100 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-37-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 868.6s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 12.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 556 SdHoareTripleChecker+Invalid, 12.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 381 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1247 IncrementalHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 175 mSDtfsCounter, 1247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 926 GetRequests, 822 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 84.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=4, InterpolantAutomatonStates: 65, 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, 45 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 763.5s InterpolantComputationTime, 688 NumberOfCodeBlocks, 688 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 681 ConstructedInterpolants, 5 QuantifiedInterpolants, 5029 SizeOfPredicates, 64 NumberOfNonLiveVariables, 1155 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 2925/3360 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