/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/eca-rers2012/Problem19_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 17:56:55,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 17:56:55,432 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 17:56:55,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 17:56:55,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 17:56:55,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 17:56:55,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 17:56:55,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 17:56:55,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 17:56:55,463 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 17:56:55,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 17:56:55,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 17:56:55,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 17:56:55,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 17:56:55,465 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 17:56:55,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 17:56:55,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 17:56:55,466 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 17:56:55,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 17:56:55,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 17:56:55,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 17:56:55,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 17:56:55,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 17:56:55,468 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 17:56:55,468 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 17:56:55,468 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 17:56:55,468 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 17:56:55,468 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 17:56:55,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 17:56:55,469 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 17:56:55,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 17:56:55,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 17:56:55,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 17:56:55,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 17:56:55,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:56:55,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 17:56:55,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 17:56:55,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 17:56:55,470 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 17:56:55,470 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 17:56:55,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 17:56:55,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 17:56:55,471 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 17:56:55,471 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 17:56:55,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 17:56:55,472 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 17:56:55,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 17:56:55,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 17:56:55,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 17:56:55,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 17:56:55,693 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 17:56:55,694 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 17:56:55,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54.c [2023-12-22 17:56:56,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 17:56:57,138 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 17:56:57,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label54.c [2023-12-22 17:56:57,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817388d21/f25f3591a1ae407d9c9ee9138e95b6d3/FLAGa7afe814d [2023-12-22 17:56:57,192 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817388d21/f25f3591a1ae407d9c9ee9138e95b6d3 [2023-12-22 17:56:57,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 17:56:57,195 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 17:56:57,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 17:56:57,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 17:56:57,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 17:56:57,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:56:57" (1/1) ... [2023-12-22 17:56:57,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0e7872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:57, skipping insertion in model container [2023-12-22 17:56:57,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:56:57" (1/1) ... [2023-12-22 17:56:57,358 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 17:56:57,609 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label54.c[8269,8282] [2023-12-22 17:56:58,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:56:58,470 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 17:56:58,493 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label54.c[8269,8282] [2023-12-22 17:56:59,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:56:59,110 INFO L206 MainTranslator]: Completed translation [2023-12-22 17:56:59,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59 WrapperNode [2023-12-22 17:56:59,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 17:56:59,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 17:56:59,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 17:56:59,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 17:56:59,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,419 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9424 [2023-12-22 17:56:59,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 17:56:59,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 17:56:59,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 17:56:59,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 17:56:59,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,613 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]. [2023-12-22 17:56:59,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 17:56:59,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 17:56:59,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 17:56:59,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 17:56:59,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (1/1) ... [2023-12-22 17:56:59,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:56:59,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 17:56:59,938 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) [2023-12-22 17:56:59,956 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 [2023-12-22 17:56:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 17:56:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 17:56:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 17:56:59,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 17:57:00,018 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 17:57:00,019 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 17:58:06,442 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 17:58:06,506 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 17:58:06,506 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 17:58:06,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:58:06 BoogieIcfgContainer [2023-12-22 17:58:06,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 17:58:06,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 17:58:06,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 17:58:06,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 17:58:06,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:56:57" (1/3) ... [2023-12-22 17:58:06,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c411ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:58:06, skipping insertion in model container [2023-12-22 17:58:06,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:56:59" (2/3) ... [2023-12-22 17:58:06,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c411ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:58:06, skipping insertion in model container [2023-12-22 17:58:06,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:58:06" (3/3) ... [2023-12-22 17:58:06,515 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label54.c [2023-12-22 17:58:06,527 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 17:58:06,527 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 17:58:06,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 17:58:06,594 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;@7a8f305, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 17:58:06,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 17:58:06,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:58:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-22 17:58:06,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:58:06,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:58:06,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:58:06,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:58:06,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1582150121, now seen corresponding path program 1 times [2023-12-22 17:58:06,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:58:06,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172055273] [2023-12-22 17:58:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:58:06,633 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 [2023-12-22 17:58:06,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:58:06,635 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) [2023-12-22 17:58:06,667 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 [2023-12-22 17:58:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:58:06,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 17:58:06,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:58:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:58:06,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:58:06,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:58:06,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172055273] [2023-12-22 17:58:06,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172055273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:58:06,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:58:06,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:58:06,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667562110] [2023-12-22 17:58:06,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:58:06,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 17:58:06,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:58:06,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 17:58:06,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:58:06,773 INFO L87 Difference]: Start difference. First operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:58:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:58:06,882 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-22 17:58:06,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 17:58:06,884 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-22 17:58:06,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:58:06,908 INFO L225 Difference]: With dead ends: 3371 [2023-12-22 17:58:06,908 INFO L226 Difference]: Without dead ends: 1684 [2023-12-22 17:58:06,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:58:06,917 INFO L413 NwaCegarLoop]: 3138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 17:58:06,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 17:58:06,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-22 17:58:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-22 17:58:07,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:58:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-22 17:58:07,022 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 63 [2023-12-22 17:58:07,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:58:07,023 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-22 17:58:07,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:58:07,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-22 17:58:07,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-22 17:58:07,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:58:07,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:58:07,029 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 [2023-12-22 17:58:07,226 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 [2023-12-22 17:58:07,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:58:07,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:58:07,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1008379227, now seen corresponding path program 1 times [2023-12-22 17:58:07,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:58:07,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202649672] [2023-12-22 17:58:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:58:07,228 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 [2023-12-22 17:58:07,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:58:07,229 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) [2023-12-22 17:58:07,236 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 [2023-12-22 17:58:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:58:07,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:58:07,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:58:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:58:07,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:58:07,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:58:07,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202649672] [2023-12-22 17:58:07,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202649672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:58:07,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:58:07,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:58:07,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661923254] [2023-12-22 17:58:07,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:58:07,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:58:07,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:58:07,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:58:07,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:58:07,661 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:59:41,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:59:41,844 INFO L93 Difference]: Finished difference Result 4792 states and 9045 transitions. [2023-12-22 17:59:41,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:59:41,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-22 17:59:41,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:59:41,857 INFO L225 Difference]: With dead ends: 4792 [2023-12-22 17:59:41,857 INFO L226 Difference]: Without dead ends: 3109 [2023-12-22 17:59:41,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:59:41,861 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 1523 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 4744 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 5654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.8s IncrementalHoareTripleChecker+Time [2023-12-22 17:59:41,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1540 Invalid, 5654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [910 Valid, 4744 Invalid, 0 Unknown, 0 Unchecked, 93.8s Time] [2023-12-22 17:59:41,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2023-12-22 17:59:41,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3082. [2023-12-22 17:59:41,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3081 states have (on average 1.6043492372606296) internal successors, (4943), 3081 states have internal predecessors, (4943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:59:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 4943 transitions. [2023-12-22 17:59:41,912 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 4943 transitions. Word has length 63 [2023-12-22 17:59:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:59:41,913 INFO L495 AbstractCegarLoop]: Abstraction has 3082 states and 4943 transitions. [2023-12-22 17:59:41,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:59:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 4943 transitions. [2023-12-22 17:59:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 17:59:41,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:59:41,914 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:59:41,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 17:59:42,117 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 [2023-12-22 17:59:42,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:59:42,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:59:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1093542767, now seen corresponding path program 1 times [2023-12-22 17:59:42,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:59:42,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952516116] [2023-12-22 17:59:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:59:42,121 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 [2023-12-22 17:59:42,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:59:42,122 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) [2023-12-22 17:59:42,148 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 [2023-12-22 17:59:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:59:42,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:59:42,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:59:42,541 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:59:42,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:59:42,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:59:42,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952516116] [2023-12-22 17:59:42,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952516116] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:59:42,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:59:42,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:59:42,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897942180] [2023-12-22 17:59:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:59:42,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:59:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:59:42,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:59:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:59:42,544 INFO L87 Difference]: Start difference. First operand 3082 states and 4943 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:01:29,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:01:29,015 INFO L93 Difference]: Finished difference Result 9092 states and 14611 transitions. [2023-12-22 18:01:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:01:29,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-22 18:01:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:01:29,033 INFO L225 Difference]: With dead ends: 9092 [2023-12-22 18:01:29,033 INFO L226 Difference]: Without dead ends: 6011 [2023-12-22 18:01:29,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:01:29,038 INFO L413 NwaCegarLoop]: 1342 mSDtfsCounter, 1779 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 4680 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 5623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 4680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.1s IncrementalHoareTripleChecker+Time [2023-12-22 18:01:29,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 1617 Invalid, 5623 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [943 Valid, 4680 Invalid, 0 Unknown, 0 Unchecked, 106.1s Time] [2023-12-22 18:01:29,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2023-12-22 18:01:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 5996. [2023-12-22 18:01:29,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5996 states, 5995 states have (on average 1.4040033361134279) internal successors, (8417), 5995 states have internal predecessors, (8417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:01:29,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5996 states to 5996 states and 8417 transitions. [2023-12-22 18:01:29,132 INFO L78 Accepts]: Start accepts. Automaton has 5996 states and 8417 transitions. Word has length 130 [2023-12-22 18:01:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:01:29,133 INFO L495 AbstractCegarLoop]: Abstraction has 5996 states and 8417 transitions. [2023-12-22 18:01:29,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:01:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5996 states and 8417 transitions. [2023-12-22 18:01:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-22 18:01:29,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:01:29,139 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:01:29,143 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 [2023-12-22 18:01:29,345 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 [2023-12-22 18:01:29,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:01:29,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:01:29,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1253978371, now seen corresponding path program 1 times [2023-12-22 18:01:29,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:01:29,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445178274] [2023-12-22 18:01:29,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:01:29,349 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 [2023-12-22 18:01:29,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:01:29,350 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) [2023-12-22 18:01:29,375 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 [2023-12-22 18:01:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:01:29,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:01:29,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:01:29,911 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:01:29,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:01:29,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:01:29,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445178274] [2023-12-22 18:01:29,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445178274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:01:29,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:01:29,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:01:29,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038706060] [2023-12-22 18:01:29,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:01:29,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:01:29,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:01:29,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:01:29,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:01:29,913 INFO L87 Difference]: Start difference. First operand 5996 states and 8417 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:03:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:03:36,273 INFO L93 Difference]: Finished difference Result 13291 states and 19422 transitions. [2023-12-22 18:03:36,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:03:36,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2023-12-22 18:03:36,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:03:36,319 INFO L225 Difference]: With dead ends: 13291 [2023-12-22 18:03:36,319 INFO L226 Difference]: Without dead ends: 7296 [2023-12-22 18:03:36,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:03:36,344 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 2516 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 5286 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 5551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 5286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.9s IncrementalHoareTripleChecker+Time [2023-12-22 18:03:36,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 991 Invalid, 5551 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 5286 Invalid, 0 Unknown, 0 Unchecked, 125.9s Time] [2023-12-22 18:03:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7296 states. [2023-12-22 18:03:36,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7296 to 7293. [2023-12-22 18:03:36,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 7292 states have (on average 1.4181294569391114) internal successors, (10341), 7292 states have internal predecessors, (10341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:03:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 10341 transitions. [2023-12-22 18:03:36,581 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 10341 transitions. Word has length 132 [2023-12-22 18:03:36,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:03:36,585 INFO L495 AbstractCegarLoop]: Abstraction has 7293 states and 10341 transitions. [2023-12-22 18:03:36,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:03:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 10341 transitions. [2023-12-22 18:03:36,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-22 18:03:36,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:03:36,588 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:03:36,600 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 [2023-12-22 18:03:36,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:03:36,792 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:03:36,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:03:36,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1336248434, now seen corresponding path program 1 times [2023-12-22 18:03:36,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:03:36,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630090695] [2023-12-22 18:03:36,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:03:36,795 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 [2023-12-22 18:03:36,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:03:36,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 18:03:36,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 18:03:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:03:36,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:03:36,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:03:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:03:38,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:03:38,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:03:38,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630090695] [2023-12-22 18:03:38,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630090695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:03:38,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:03:38,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:03:38,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955686963] [2023-12-22 18:03:38,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:03:38,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:03:38,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:03:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:03:38,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:03:38,089 INFO L87 Difference]: Start difference. First operand 7293 states and 10341 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:05:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:05:51,959 INFO L93 Difference]: Finished difference Result 21483 states and 30420 transitions. [2023-12-22 18:05:51,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:05:51,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2023-12-22 18:05:51,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:05:52,043 INFO L225 Difference]: With dead ends: 21483 [2023-12-22 18:05:52,044 INFO L226 Difference]: Without dead ends: 14191 [2023-12-22 18:05:52,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:05:52,154 INFO L413 NwaCegarLoop]: 1786 mSDtfsCounter, 1269 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 4700 mSolverCounterSat, 1139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 5839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1139 IncrementalHoareTripleChecker+Valid, 4700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.3s IncrementalHoareTripleChecker+Time [2023-12-22 18:05:52,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 1988 Invalid, 5839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1139 Valid, 4700 Invalid, 0 Unknown, 0 Unchecked, 133.3s Time] [2023-12-22 18:05:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14191 states. [2023-12-22 18:05:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14191 to 14185. [2023-12-22 18:05:52,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14185 states, 14184 states have (on average 1.2659334461364917) internal successors, (17956), 14184 states have internal predecessors, (17956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:05:52,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14185 states to 14185 states and 17956 transitions. [2023-12-22 18:05:52,507 INFO L78 Accepts]: Start accepts. Automaton has 14185 states and 17956 transitions. Word has length 223 [2023-12-22 18:05:52,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:05:52,518 INFO L495 AbstractCegarLoop]: Abstraction has 14185 states and 17956 transitions. [2023-12-22 18:05:52,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:05:52,534 INFO L276 IsEmpty]: Start isEmpty. Operand 14185 states and 17956 transitions. [2023-12-22 18:05:52,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-22 18:05:52,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:05:52,543 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:05:52,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 18:05:52,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 18:05:52,748 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:05:52,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:05:52,748 INFO L85 PathProgramCache]: Analyzing trace with hash 463211080, now seen corresponding path program 1 times [2023-12-22 18:05:52,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:05:52,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583966790] [2023-12-22 18:05:52,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:05:52,750 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 [2023-12-22 18:05:52,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:05:52,752 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) [2023-12-22 18:05:52,796 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 [2023-12-22 18:05:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:05:52,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 18:05:52,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:05:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 18:05:57,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:05:57,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:05:57,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583966790] [2023-12-22 18:05:57,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583966790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:05:57,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:05:57,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:05:57,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281642060] [2023-12-22 18:05:57,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:05:57,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:05:57,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:05:57,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:05:57,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:05:57,340 INFO L87 Difference]: Start difference. First operand 14185 states and 17956 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 2 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:07:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:07:28,981 INFO L93 Difference]: Finished difference Result 24260 states and 31348 transitions. [2023-12-22 18:07:28,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:07:28,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 2 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2023-12-22 18:07:28,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:07:29,045 INFO L225 Difference]: With dead ends: 24260 [2023-12-22 18:07:29,046 INFO L226 Difference]: Without dead ends: 15550 [2023-12-22 18:07:29,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:07:29,080 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 1161 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4334 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.2s IncrementalHoareTripleChecker+Time [2023-12-22 18:07:29,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1941 Invalid, 4339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4334 Invalid, 0 Unknown, 0 Unchecked, 91.2s Time] [2023-12-22 18:07:29,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15550 states. [2023-12-22 18:07:29,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15550 to 15550. [2023-12-22 18:07:29,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15550 states, 15549 states have (on average 1.2433597015885265) internal successors, (19333), 15549 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:07:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15550 states to 15550 states and 19333 transitions. [2023-12-22 18:07:29,473 INFO L78 Accepts]: Start accepts. Automaton has 15550 states and 19333 transitions. Word has length 270 [2023-12-22 18:07:29,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:07:29,473 INFO L495 AbstractCegarLoop]: Abstraction has 15550 states and 19333 transitions. [2023-12-22 18:07:29,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 2 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:07:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 15550 states and 19333 transitions. [2023-12-22 18:07:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2023-12-22 18:07:29,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:07:29,483 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:07:29,506 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 (7)] Ended with exit code 0 [2023-12-22 18:07:29,686 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 [2023-12-22 18:07:29,687 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:07:29,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:07:29,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1303483179, now seen corresponding path program 1 times [2023-12-22 18:07:29,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:07:29,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043631954] [2023-12-22 18:07:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:07:29,690 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 [2023-12-22 18:07:29,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:07:29,691 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) [2023-12-22 18:07:29,726 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 [2023-12-22 18:07:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:07:29,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 18:07:29,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:07:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-22 18:07:37,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:07:37,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:07:37,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043631954] [2023-12-22 18:07:37,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043631954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:07:37,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:07:37,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 18:07:37,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383422525] [2023-12-22 18:07:37,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:07:37,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 18:07:37,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:07:37,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 18:07:37,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 18:07:37,953 INFO L87 Difference]: Start difference. First operand 15550 states and 19333 transitions. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:09:21,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:09:21,591 INFO L93 Difference]: Finished difference Result 24291 states and 31373 transitions. [2023-12-22 18:09:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 18:09:21,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 458 [2023-12-22 18:09:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:09:21,613 INFO L225 Difference]: With dead ends: 24291 [2023-12-22 18:09:21,613 INFO L226 Difference]: Without dead ends: 10076 [2023-12-22 18:09:21,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 18:09:21,622 INFO L413 NwaCegarLoop]: 1767 mSDtfsCounter, 1138 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 7324 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 7332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.1s IncrementalHoareTripleChecker+Time [2023-12-22 18:09:21,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2108 Invalid, 7332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 7324 Invalid, 0 Unknown, 0 Unchecked, 103.1s Time] [2023-12-22 18:09:21,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2023-12-22 18:09:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 10076. [2023-12-22 18:09:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10076 states, 10075 states have (on average 1.3278411910669976) internal successors, (13378), 10075 states have internal predecessors, (13378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:09:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10076 states to 10076 states and 13378 transitions. [2023-12-22 18:09:21,719 INFO L78 Accepts]: Start accepts. Automaton has 10076 states and 13378 transitions. Word has length 458 [2023-12-22 18:09:21,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:09:21,720 INFO L495 AbstractCegarLoop]: Abstraction has 10076 states and 13378 transitions. [2023-12-22 18:09:21,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:09:21,720 INFO L276 IsEmpty]: Start isEmpty. Operand 10076 states and 13378 transitions. [2023-12-22 18:09:21,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2023-12-22 18:09:21,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:09:21,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:09:21,733 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 [2023-12-22 18:09:21,933 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 [2023-12-22 18:09:21,934 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:09:21,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:09:21,934 INFO L85 PathProgramCache]: Analyzing trace with hash 279656145, now seen corresponding path program 1 times [2023-12-22 18:09:21,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:09:21,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107235589] [2023-12-22 18:09:21,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:09:21,937 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 [2023-12-22 18:09:21,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:09:21,938 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) [2023-12-22 18:09:21,939 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 [2023-12-22 18:09:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:09:22,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 18:09:22,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 18:09:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-22 18:09:25,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 18:09:25,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 18:09:25,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107235589] [2023-12-22 18:09:25,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107235589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 18:09:25,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 18:09:25,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 18:09:25,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647113061] [2023-12-22 18:09:25,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 18:09:25,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 18:09:25,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 18:09:25,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 18:09:25,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:09:25,303 INFO L87 Difference]: Start difference. First operand 10076 states and 13378 transitions. Second operand has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 2 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:11:34,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 18:11:34,637 INFO L93 Difference]: Finished difference Result 28471 states and 38229 transitions. [2023-12-22 18:11:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 18:11:34,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 2 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 645 [2023-12-22 18:11:34,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 18:11:34,701 INFO L225 Difference]: With dead ends: 28471 [2023-12-22 18:11:34,701 INFO L226 Difference]: Without dead ends: 19761 [2023-12-22 18:11:34,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 18:11:34,728 INFO L413 NwaCegarLoop]: 1885 mSDtfsCounter, 1019 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 5068 mSolverCounterSat, 1012 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 6080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1012 IncrementalHoareTripleChecker+Valid, 5068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128.8s IncrementalHoareTripleChecker+Time [2023-12-22 18:11:34,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 2052 Invalid, 6080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1012 Valid, 5068 Invalid, 0 Unknown, 0 Unchecked, 128.8s Time] [2023-12-22 18:11:34,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19761 states. [2023-12-22 18:11:35,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19761 to 19707. [2023-12-22 18:11:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19707 states, 19706 states have (on average 1.229371764944687) internal successors, (24226), 19706 states have internal predecessors, (24226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:11:35,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19707 states to 19707 states and 24226 transitions. [2023-12-22 18:11:35,126 INFO L78 Accepts]: Start accepts. Automaton has 19707 states and 24226 transitions. Word has length 645 [2023-12-22 18:11:35,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 18:11:35,127 INFO L495 AbstractCegarLoop]: Abstraction has 19707 states and 24226 transitions. [2023-12-22 18:11:35,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 2 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 18:11:35,127 INFO L276 IsEmpty]: Start isEmpty. Operand 19707 states and 24226 transitions. [2023-12-22 18:11:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2023-12-22 18:11:35,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 18:11:35,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:11:35,170 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 [2023-12-22 18:11:35,349 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 [2023-12-22 18:11:35,350 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 18:11:35,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 18:11:35,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2134788879, now seen corresponding path program 1 times [2023-12-22 18:11:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 18:11:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781991772] [2023-12-22 18:11:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 18:11:35,353 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 [2023-12-22 18:11:35,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 18:11:35,361 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-22 18:11:35,416 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 (10)] Waiting until timeout for monitored process [2023-12-22 18:11:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 18:11:35,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 18:11:35,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-22 18:11:36,325 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 [2023-12-22 18:11:36,326 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 18:11:37,334 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 18:11:37,351 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 (10)] Ended with exit code 0 [2023-12-22 18:11:37,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-22 18:11:37,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-12-22 18:11:37,535 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 655 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-22 18:11:37,539 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 18:11:37,540 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 18:11:37,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:11:37 BoogieIcfgContainer [2023-12-22 18:11:37,542 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 18:11:37,542 INFO L158 Benchmark]: Toolchain (without parser) took 880347.33ms. Allocated memory was 192.9MB in the beginning and 764.4MB in the end (delta: 571.5MB). Free memory was 122.9MB in the beginning and 543.0MB in the end (delta: -420.1MB). Peak memory consumption was 152.2MB. Max. memory is 8.0GB. [2023-12-22 18:11:37,542 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 192.9MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 18:11:37,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1913.50ms. Allocated memory was 192.9MB in the beginning and 283.1MB in the end (delta: 90.2MB). Free memory was 122.9MB in the beginning and 117.7MB in the end (delta: 5.2MB). Peak memory consumption was 139.6MB. Max. memory is 8.0GB. [2023-12-22 18:11:37,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 308.27ms. Allocated memory is still 283.1MB. Free memory was 117.7MB in the beginning and 146.6MB in the end (delta: -28.9MB). Peak memory consumption was 56.1MB. Max. memory is 8.0GB. [2023-12-22 18:11:37,543 INFO L158 Benchmark]: Boogie Preprocessor took 495.19ms. Allocated memory was 283.1MB in the beginning and 415.2MB in the end (delta: 132.1MB). Free memory was 146.6MB in the beginning and 269.3MB in the end (delta: -122.7MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. [2023-12-22 18:11:37,543 INFO L158 Benchmark]: RCFGBuilder took 66590.01ms. Allocated memory was 415.2MB in the beginning and 764.4MB in the end (delta: 349.2MB). Free memory was 269.3MB in the beginning and 488.9MB in the end (delta: -219.7MB). Peak memory consumption was 349.7MB. Max. memory is 8.0GB. [2023-12-22 18:11:37,543 INFO L158 Benchmark]: TraceAbstraction took 811034.01ms. Allocated memory is still 764.4MB. Free memory was 487.9MB in the beginning and 543.0MB in the end (delta: -55.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 18:11:37,548 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 192.9MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1913.50ms. Allocated memory was 192.9MB in the beginning and 283.1MB in the end (delta: 90.2MB). Free memory was 122.9MB in the beginning and 117.7MB in the end (delta: 5.2MB). Peak memory consumption was 139.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 308.27ms. Allocated memory is still 283.1MB. Free memory was 117.7MB in the beginning and 146.6MB in the end (delta: -28.9MB). Peak memory consumption was 56.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 495.19ms. Allocated memory was 283.1MB in the beginning and 415.2MB in the end (delta: 132.1MB). Free memory was 146.6MB in the beginning and 269.3MB in the end (delta: -122.7MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. * RCFGBuilder took 66590.01ms. Allocated memory was 415.2MB in the beginning and 764.4MB in the end (delta: 349.2MB). Free memory was 269.3MB in the beginning and 488.9MB in the end (delta: -219.7MB). Peak memory consumption was 349.7MB. Max. memory is 8.0GB. * TraceAbstraction took 811034.01ms. Allocated memory is still 764.4MB. Free memory was 487.9MB in the beginning and 543.0MB in the end (delta: -55.1MB). There was no memory consumed. 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: 218]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 218). Cancelled while NwaCegarLoop was analyzing trace of length 655 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 811.0s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 786.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10405 SdHoareTripleChecker+Valid, 782.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10405 mSDsluCounter, 15375 SdHoareTripleChecker+Invalid, 645.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1648 mSDsCounter, 4282 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36138 IncrementalHoareTripleChecker+Invalid, 40420 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4282 mSolverCounterUnsat, 13727 mSDtfsCounter, 36138 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1976 GetRequests, 1968 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19707occurred in iteration=8, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 105 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 1984 NumberOfCodeBlocks, 1984 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1976 ConstructedInterpolants, 0 QuantifiedInterpolants, 9714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2304 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 752/752 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