/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_fillercode_fillercodestructure_filler-pe-ci_file-4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 07:17:15,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 07:17:15,689 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 07:17:15,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 07:17:15,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 07:17:15,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 07:17:15,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 07:17:15,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 07:17:15,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 07:17:15,723 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 07:17:15,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 07:17:15,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 07:17:15,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 07:17:15,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 07:17:15,726 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 07:17:15,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 07:17:15,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 07:17:15,727 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 07:17:15,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 07:17:15,727 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 07:17:15,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 07:17:15,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 07:17:15,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 07:17:15,728 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 07:17:15,728 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 07:17:15,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 07:17:15,729 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 07:17:15,729 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 07:17:15,729 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 07:17:15,729 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 07:17:15,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 07:17:15,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 07:17:15,730 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 07:17:15,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 07:17:15,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 07:17:15,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 07:17:15,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 07:17:15,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 07:17:15,731 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 07:17:15,731 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 07:17:15,731 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 07:17:15,731 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 07:17:15,731 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 07:17:15,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 07:17:15,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 07:17:15,732 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 07:17:15,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 07:17:15,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 07:17:15,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 07:17:15,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 07:17:15,955 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 07:17:15,955 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 07:17:15,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-4.i [2023-12-23 07:17:17,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 07:17:17,257 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 07:17:17,258 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-4.i [2023-12-23 07:17:17,266 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b88cbf48/fdc9483e287041bfb568dce1172d92ca/FLAGcbfee82de [2023-12-23 07:17:17,279 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b88cbf48/fdc9483e287041bfb568dce1172d92ca [2023-12-23 07:17:17,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 07:17:17,282 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 07:17:17,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 07:17:17,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 07:17:17,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 07:17:17,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3eb6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17, skipping insertion in model container [2023-12-23 07:17:17,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,324 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 07:17:17,445 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_fillercode_fillercodestructure_filler-pe-ci_file-4.i[918,931] [2023-12-23 07:17:17,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 07:17:17,505 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 07:17:17,513 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_fillercode_fillercodestructure_filler-pe-ci_file-4.i[918,931] [2023-12-23 07:17:17,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 07:17:17,550 INFO L206 MainTranslator]: Completed translation [2023-12-23 07:17:17,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17 WrapperNode [2023-12-23 07:17:17,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 07:17:17,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 07:17:17,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 07:17:17,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 07:17:17,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,587 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 210 [2023-12-23 07:17:17,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 07:17:17,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 07:17:17,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 07:17:17,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 07:17:17,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,612 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 07:17:17,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 07:17:17,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 07:17:17,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 07:17:17,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 07:17:17,658 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (1/1) ... [2023-12-23 07:17:17,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 07:17:17,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 07:17:17,702 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 07:17:17,714 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 07:17:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 07:17:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 07:17:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 07:17:17,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 07:17:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 07:17:17,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 07:17:17,796 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 07:17:17,798 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 07:17:18,498 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 07:17:18,593 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 07:17:18,593 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 07:17:18,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:17:18 BoogieIcfgContainer [2023-12-23 07:17:18,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 07:17:18,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 07:17:18,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 07:17:18,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 07:17:18,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:17:17" (1/3) ... [2023-12-23 07:17:18,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639321fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:17:18, skipping insertion in model container [2023-12-23 07:17:18,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:17:17" (2/3) ... [2023-12-23 07:17:18,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639321fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:17:18, skipping insertion in model container [2023-12-23 07:17:18,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:17:18" (3/3) ... [2023-12-23 07:17:18,616 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-4.i [2023-12-23 07:17:18,627 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 07:17:18,642 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 07:17:18,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 07:17:18,722 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;@3579f7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 07:17:18,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 07:17:18,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-23 07:17:18,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-23 07:17:18,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:17:18,753 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:18,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:17:18,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:17:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash 343572306, now seen corresponding path program 1 times [2023-12-23 07:17:18,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:17:18,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306211584] [2023-12-23 07:17:18,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:17:18,788 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 07:17:18,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:17:18,791 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 07:17:18,840 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 07:17:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:17:19,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 07:17:19,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:17:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-23 07:17:19,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 07:17:19,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 07:17:19,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306211584] [2023-12-23 07:17:19,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306211584] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 07:17:19,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 07:17:19,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 07:17:19,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300078961] [2023-12-23 07:17:19,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 07:17:19,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 07:17:19,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 07:17:19,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 07:17:19,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 07:17:19,196 INFO L87 Difference]: Start difference. First operand has 89 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-23 07:17:19,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 07:17:19,369 INFO L93 Difference]: Finished difference Result 175 states and 323 transitions. [2023-12-23 07:17:19,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 07:17:19,384 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 203 [2023-12-23 07:17:19,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 07:17:19,389 INFO L225 Difference]: With dead ends: 175 [2023-12-23 07:17:19,389 INFO L226 Difference]: Without dead ends: 87 [2023-12-23 07:17:19,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 202 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 07:17:19,397 INFO L413 NwaCegarLoop]: 137 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, 137 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 07:17:19,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 07:17:19,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-23 07:17:19,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-12-23 07:17:19,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 52 states have internal predecessors, (74), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-23 07:17:19,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 140 transitions. [2023-12-23 07:17:19,437 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 140 transitions. Word has length 203 [2023-12-23 07:17:19,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 07:17:19,437 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 140 transitions. [2023-12-23 07:17:19,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-23 07:17:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 140 transitions. [2023-12-23 07:17:19,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-23 07:17:19,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:17:19,457 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:19,465 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 [2023-12-23 07:17:19,664 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 07:17:19,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:17:19,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:17:19,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1673765186, now seen corresponding path program 1 times [2023-12-23 07:17:19,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:17:19,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641032116] [2023-12-23 07:17:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:17:19,666 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 07:17:19,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:17:19,676 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 07:17:19,689 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 07:17:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:17:19,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 07:17:19,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:17:20,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 309 proven. 177 refuted. 0 times theorem prover too weak. 1626 trivial. 0 not checked. [2023-12-23 07:17:20,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 07:17:21,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 9 proven. 180 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2023-12-23 07:17:21,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 07:17:21,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641032116] [2023-12-23 07:17:21,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641032116] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 07:17:21,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 07:17:21,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-12-23 07:17:21,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124431718] [2023-12-23 07:17:21,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 07:17:21,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-23 07:17:21,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 07:17:21,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-23 07:17:21,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-23 07:17:21,128 INFO L87 Difference]: Start difference. First operand 87 states and 140 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (64), 3 states have call predecessors, (64), 7 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2023-12-23 07:17:22,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 07:17:22,246 INFO L93 Difference]: Finished difference Result 219 states and 343 transitions. [2023-12-23 07:17:22,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 07:17:22,247 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (64), 3 states have call predecessors, (64), 7 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 204 [2023-12-23 07:17:22,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 07:17:22,249 INFO L225 Difference]: With dead ends: 219 [2023-12-23 07:17:22,249 INFO L226 Difference]: Without dead ends: 133 [2023-12-23 07:17:22,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2023-12-23 07:17:22,250 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 342 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-23 07:17:22,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 371 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-23 07:17:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-23 07:17:22,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 98. [2023-12-23 07:17:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 61 states have internal predecessors, (77), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-23 07:17:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 143 transitions. [2023-12-23 07:17:22,264 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 143 transitions. Word has length 204 [2023-12-23 07:17:22,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 07:17:22,264 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 143 transitions. [2023-12-23 07:17:22,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (64), 3 states have call predecessors, (64), 7 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2023-12-23 07:17:22,265 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 143 transitions. [2023-12-23 07:17:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-23 07:17:22,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:17:22,267 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:22,300 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 07:17:22,500 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 [2023-12-23 07:17:22,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:17:22,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:17:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash -153511540, now seen corresponding path program 1 times [2023-12-23 07:17:22,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:17:22,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389035205] [2023-12-23 07:17:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:17:22,502 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 07:17:22,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:17:22,505 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) [2023-12-23 07:17:22,506 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 [2023-12-23 07:17:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:17:22,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 07:17:22,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:17:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2023-12-23 07:17:23,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 07:17:23,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 07:17:23,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389035205] [2023-12-23 07:17:23,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389035205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 07:17:23,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 07:17:23,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 07:17:23,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109489692] [2023-12-23 07:17:23,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 07:17:23,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 07:17:23,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 07:17:23,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 07:17:23,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 07:17:23,073 INFO L87 Difference]: Start difference. First operand 98 states and 143 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-23 07:17:23,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 07:17:23,669 INFO L93 Difference]: Finished difference Result 301 states and 442 transitions. [2023-12-23 07:17:23,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 07:17:23,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2023-12-23 07:17:23,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 07:17:23,671 INFO L225 Difference]: With dead ends: 301 [2023-12-23 07:17:23,671 INFO L226 Difference]: Without dead ends: 204 [2023-12-23 07:17:23,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-23 07:17:23,673 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 207 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-23 07:17:23,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 346 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-23 07:17:23,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-23 07:17:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 186. [2023-12-23 07:17:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 113 states have internal predecessors, (139), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-23 07:17:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 271 transitions. [2023-12-23 07:17:23,692 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 271 transitions. Word has length 205 [2023-12-23 07:17:23,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 07:17:23,692 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 271 transitions. [2023-12-23 07:17:23,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-23 07:17:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 271 transitions. [2023-12-23 07:17:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-23 07:17:23,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:17:23,694 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:23,713 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 [2023-12-23 07:17:23,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 07:17:23,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:17:23,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:17:23,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1433375218, now seen corresponding path program 1 times [2023-12-23 07:17:23,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:17:23,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845746528] [2023-12-23 07:17:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:17:23,912 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 07:17:23,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:17:23,913 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 07:17:23,915 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 07:17:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:17:24,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 07:17:24,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:17:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 816 proven. 72 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2023-12-23 07:17:25,142 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 07:17:25,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 07:17:25,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845746528] [2023-12-23 07:17:25,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845746528] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 07:17:25,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [648060148] [2023-12-23 07:17:25,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:17:25,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 07:17:25,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 07:17:25,333 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 07:17:25,372 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 07:17:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:17:26,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 07:17:26,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:17:27,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 932 proven. 135 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2023-12-23 07:17:27,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 07:17:27,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [648060148] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 07:17:27,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 07:17:27,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2023-12-23 07:17:27,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289390593] [2023-12-23 07:17:27,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 07:17:27,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-23 07:17:27,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 07:17:27,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-23 07:17:27,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-12-23 07:17:27,277 INFO L87 Difference]: Start difference. First operand 186 states and 271 transitions. Second operand has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 5 states have call successors, (66), 5 states have call predecessors, (66), 8 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) [2023-12-23 07:17:32,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 07:17:32,727 INFO L93 Difference]: Finished difference Result 504 states and 711 transitions. [2023-12-23 07:17:32,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-23 07:17:32,729 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 5 states have call successors, (66), 5 states have call predecessors, (66), 8 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) Word has length 205 [2023-12-23 07:17:32,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 07:17:32,731 INFO L225 Difference]: With dead ends: 504 [2023-12-23 07:17:32,731 INFO L226 Difference]: Without dead ends: 319 [2023-12-23 07:17:32,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=457, Invalid=1183, Unknown=0, NotChecked=0, Total=1640 [2023-12-23 07:17:32,733 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 299 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-23 07:17:32,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 744 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-23 07:17:32,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-12-23 07:17:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 299. [2023-12-23 07:17:32,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 184 states have (on average 1.1793478260869565) internal successors, (217), 184 states have internal predecessors, (217), 99 states have call successors, (99), 15 states have call predecessors, (99), 15 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-23 07:17:32,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 415 transitions. [2023-12-23 07:17:32,783 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 415 transitions. Word has length 205 [2023-12-23 07:17:32,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 07:17:32,787 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 415 transitions. [2023-12-23 07:17:32,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 5 states have call successors, (66), 5 states have call predecessors, (66), 8 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) [2023-12-23 07:17:32,787 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 415 transitions. [2023-12-23 07:17:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-23 07:17:32,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:17:32,790 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:32,800 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 07:17:33,004 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 07:17:33,203 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 07:17:33,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:17:33,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:17:33,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1172648336, now seen corresponding path program 1 times [2023-12-23 07:17:33,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:17:33,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036498970] [2023-12-23 07:17:33,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:17:33,206 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 07:17:33,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:17:33,207 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 07:17:33,224 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 07:17:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:17:33,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 07:17:33,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:17:33,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2023-12-23 07:17:33,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 07:17:33,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 07:17:33,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036498970] [2023-12-23 07:17:33,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036498970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 07:17:33,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 07:17:33,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 07:17:33,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849845344] [2023-12-23 07:17:33,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 07:17:33,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 07:17:33,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 07:17:33,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 07:17:33,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 07:17:33,976 INFO L87 Difference]: Start difference. First operand 299 states and 415 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-23 07:17:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 07:17:34,634 INFO L93 Difference]: Finished difference Result 498 states and 686 transitions. [2023-12-23 07:17:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 07:17:34,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2023-12-23 07:17:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 07:17:34,650 INFO L225 Difference]: With dead ends: 498 [2023-12-23 07:17:34,650 INFO L226 Difference]: Without dead ends: 200 [2023-12-23 07:17:34,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 07:17:34,652 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 85 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-23 07:17:34,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 392 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-23 07:17:34,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-23 07:17:34,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 174. [2023-12-23 07:17:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 97 states have (on average 1.092783505154639) internal successors, (106), 97 states have internal predecessors, (106), 66 states have call successors, (66), 10 states have call predecessors, (66), 10 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-23 07:17:34,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 238 transitions. [2023-12-23 07:17:34,697 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 238 transitions. Word has length 205 [2023-12-23 07:17:34,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 07:17:34,699 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 238 transitions. [2023-12-23 07:17:34,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-23 07:17:34,700 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 238 transitions. [2023-12-23 07:17:34,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-23 07:17:34,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:17:34,703 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:34,730 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 07:17:34,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 07:17:34,903 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:17:34,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:17:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash -33045951, now seen corresponding path program 1 times [2023-12-23 07:17:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:17:34,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239536459] [2023-12-23 07:17:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:17:34,904 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 07:17:34,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:17:34,906 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) [2023-12-23 07:17:34,907 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 (8)] Waiting until timeout for monitored process [2023-12-23 07:17:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:17:35,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 07:17:35,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:17:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 18 proven. 728 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2023-12-23 07:17:35,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 07:17:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 18 proven. 78 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2023-12-23 07:17:36,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 07:17:36,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239536459] [2023-12-23 07:17:36,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239536459] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 07:17:36,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 07:17:36,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-23 07:17:36,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585614355] [2023-12-23 07:17:36,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 07:17:36,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 07:17:36,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 07:17:36,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 07:17:36,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-23 07:17:36,193 INFO L87 Difference]: Start difference. First operand 174 states and 238 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (66), 3 states have call predecessors, (66), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2023-12-23 07:17:37,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 07:17:37,011 INFO L93 Difference]: Finished difference Result 293 states and 391 transitions. [2023-12-23 07:17:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 07:17:37,037 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (66), 3 states have call predecessors, (66), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) Word has length 206 [2023-12-23 07:17:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 07:17:37,042 INFO L225 Difference]: With dead ends: 293 [2023-12-23 07:17:37,042 INFO L226 Difference]: Without dead ends: 194 [2023-12-23 07:17:37,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-23 07:17:37,045 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 80 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-23 07:17:37,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 181 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-23 07:17:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-23 07:17:37,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 182. [2023-12-23 07:17:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 103 states have (on average 1.0776699029126213) internal successors, (111), 103 states have internal predecessors, (111), 66 states have call successors, (66), 12 states have call predecessors, (66), 12 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-23 07:17:37,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 243 transitions. [2023-12-23 07:17:37,073 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 243 transitions. Word has length 206 [2023-12-23 07:17:37,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 07:17:37,074 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 243 transitions. [2023-12-23 07:17:37,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (66), 3 states have call predecessors, (66), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2023-12-23 07:17:37,074 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 243 transitions. [2023-12-23 07:17:37,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-23 07:17:37,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:17:37,075 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:37,085 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 (8)] Forceful destruction successful, exit code 0 [2023-12-23 07:17:37,283 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 [2023-12-23 07:17:37,283 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:17:37,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:17:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash 647012419, now seen corresponding path program 1 times [2023-12-23 07:17:37,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:17:37,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435040628] [2023-12-23 07:17:37,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:17:37,285 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 07:17:37,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:17:37,286 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 07:17:37,287 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 07:17:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:17:37,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-23 07:17:37,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 07:31:51,816 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 07:31:51,818 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 07:31:52,146 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 07:31:52,155 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 (9)] Ended with exit code 0 [2023-12-23 07:31:52,356 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 07:31:52,356 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 207 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-70-4-3-4-3-4-3-3-2-3-2-3-2-4-3-4-3-3-2-4-3-3-2-4-3-4-3-4-3-4-3-3-2-3-2-4-3-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. [2023-12-23 07:31:52,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-23 07:31:52,372 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 07:31:52,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:31:52 BoogieIcfgContainer [2023-12-23 07:31:52,511 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 07:31:52,512 INFO L158 Benchmark]: Toolchain (without parser) took 875229.97ms. Allocated memory was 192.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 139.7MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-23 07:31:52,512 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 07:31:52,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.16ms. Allocated memory is still 192.9MB. Free memory was 139.3MB in the beginning and 123.2MB in the end (delta: 16.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-23 07:31:52,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.08ms. Allocated memory is still 192.9MB. Free memory was 123.2MB in the beginning and 120.5MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 07:31:52,513 INFO L158 Benchmark]: Boogie Preprocessor took 68.26ms. Allocated memory is still 192.9MB. Free memory was 120.5MB in the beginning and 116.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 07:31:52,514 INFO L158 Benchmark]: RCFGBuilder took 936.98ms. Allocated memory was 192.9MB in the beginning and 358.6MB in the end (delta: 165.7MB). Free memory was 116.9MB in the beginning and 313.7MB in the end (delta: -196.8MB). Peak memory consumption was 28.5MB. Max. memory is 8.0GB. [2023-12-23 07:31:52,514 INFO L158 Benchmark]: TraceAbstraction took 873900.76ms. Allocated memory was 358.6MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 313.2MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-23 07:31:52,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.16ms. Allocated memory is still 192.9MB. Free memory was 139.3MB in the beginning and 123.2MB in the end (delta: 16.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.08ms. Allocated memory is still 192.9MB. Free memory was 123.2MB in the beginning and 120.5MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 68.26ms. Allocated memory is still 192.9MB. Free memory was 120.5MB in the beginning and 116.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 936.98ms. Allocated memory was 192.9MB in the beginning and 358.6MB in the end (delta: 165.7MB). Free memory was 116.9MB in the beginning and 313.7MB in the end (delta: -196.8MB). Peak memory consumption was 28.5MB. Max. memory is 8.0GB. * TraceAbstraction took 873900.76ms. Allocated memory was 358.6MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 313.2MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 1.4GB. 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 207 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-70-4-3-4-3-4-3-3-2-3-2-3-2-4-3-4-3-3-2-4-3-3-2-4-3-4-3-4-3-4-3-3-2-3-2-4-3-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 873.7s, OverallIterations: 7, TraceHistogramMax: 33, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1016 SdHoareTripleChecker+Valid, 7.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1013 mSDsluCounter, 2171 SdHoareTripleChecker+Invalid, 6.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1394 mSDsCounter, 420 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2224 IncrementalHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 420 mSolverCounterUnsat, 777 mSDtfsCounter, 2224 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1920 GetRequests, 1836 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=4, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 111 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 1433 NumberOfCodeBlocks, 1433 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1834 ConstructedInterpolants, 1 QuantifiedInterpolants, 10780 SizeOfPredicates, 35 NumberOfNonLiveVariables, 2388 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 17638/19008 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