/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/Problem03_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:29:10,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:29:10,671 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 08:29:10,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:29:10,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:29:10,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:29:10,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:29:10,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:29:10,715 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:29:10,719 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:29:10,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:29:10,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:29:10,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:29:10,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:29:10,721 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:29:10,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:29:10,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:29:10,722 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:29:10,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:29:10,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:29:10,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:29:10,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:29:10,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:29:10,724 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:29:10,725 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:29:10,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:29:10,725 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:29:10,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:29:10,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:29:10,725 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:29:10,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:29:10,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:29:10,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:29:10,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:29:10,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:29:10,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:29:10,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:29:10,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:29:10,728 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:29:10,728 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:29:10,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:29:10,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:29:10,729 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:29:10,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:29:10,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:29:10,729 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:29:10,729 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:29:11,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:29:11,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:29:11,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:29:11,069 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:29:11,070 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:29:11,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label44.c [2023-12-16 08:29:12,281 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:29:12,624 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:29:12,624 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label44.c [2023-12-16 08:29:12,645 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/719f32d34/05f0b80a951b422e93975b627fd1ed6a/FLAG560499583 [2023-12-16 08:29:12,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/719f32d34/05f0b80a951b422e93975b627fd1ed6a [2023-12-16 08:29:12,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:29:12,666 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:29:12,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:29:12,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:29:12,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:29:12,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:12,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b156d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:12, skipping insertion in model container [2023-12-16 08:29:12,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:29:12" (1/1) ... [2023-12-16 08:29:12,748 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:29:13,249 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/Problem03_label44.c[58121,58134] [2023-12-16 08:29:13,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:29:13,301 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:29:13,475 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/Problem03_label44.c[58121,58134] [2023-12-16 08:29:13,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:29:13,506 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:29:13,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13 WrapperNode [2023-12-16 08:29:13,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:29:13,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:29:13,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:29:13,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:29:13,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,637 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1770 [2023-12-16 08:29:13,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:29:13,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:29:13,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:29:13,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:29:13,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,663 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,696 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 08:29:13,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,741 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:29:13,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:29:13,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:29:13,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:29:13,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (1/1) ... [2023-12-16 08:29:13,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:29:13,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:29:13,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 08:29:13,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 08:29:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:29:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:29:13,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:29:13,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:29:13,965 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:29:13,968 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:29:16,102 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:29:16,194 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:29:16,194 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:29:16,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:29:16 BoogieIcfgContainer [2023-12-16 08:29:16,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:29:16,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:29:16,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:29:16,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:29:16,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:29:12" (1/3) ... [2023-12-16 08:29:16,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6c38c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:29:16, skipping insertion in model container [2023-12-16 08:29:16,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:29:13" (2/3) ... [2023-12-16 08:29:16,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6c38c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:29:16, skipping insertion in model container [2023-12-16 08:29:16,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:29:16" (3/3) ... [2023-12-16 08:29:16,202 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label44.c [2023-12-16 08:29:16,218 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:29:16,218 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:29:16,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:29:16,303 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;@61ef9516, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:29:16,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:29:16,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 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) [2023-12-16 08:29:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 08:29:16,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:16,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:16,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:16,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:16,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2015107433, now seen corresponding path program 1 times [2023-12-16 08:29:16,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:16,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842305864] [2023-12-16 08:29:16,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:16,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:16,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:16,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:29:16,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 08:29:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:16,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:29:16,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:16,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:16,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:16,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842305864] [2023-12-16 08:29:16,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842305864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:16,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:16,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:29:16,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952228005] [2023-12-16 08:29:16,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:16,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:29:16,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:16,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:29:16,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:29:16,846 INFO L87 Difference]: Start difference. First operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 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 88.0) internal successors, (176), 2 states have internal predecessors, (176), 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) [2023-12-16 08:29:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:16,893 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-16 08:29:16,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:29:16,902 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 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 176 [2023-12-16 08:29:16,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:16,912 INFO L225 Difference]: With dead ends: 479 [2023-12-16 08:29:16,913 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 08:29:16,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:29:16,918 INFO L413 NwaCegarLoop]: 392 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, 392 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 [2023-12-16 08:29:16,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:29:16,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 08:29:16,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-16 08:29:16,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.6540084388185654) internal successors, (392), 237 states have internal predecessors, (392), 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) [2023-12-16 08:29:16,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-16 08:29:16,977 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 176 [2023-12-16 08:29:16,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:16,978 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-16 08:29:16,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 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) [2023-12-16 08:29:16,978 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-16 08:29:16,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 08:29:16,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:16,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:16,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 08:29:17,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:17,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:17,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:17,192 INFO L85 PathProgramCache]: Analyzing trace with hash 841366142, now seen corresponding path program 1 times [2023-12-16 08:29:17,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:17,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253355874] [2023-12-16 08:29:17,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:17,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:17,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:17,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:29:17,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:29:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:17,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 08:29:17,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:32,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:32,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:32,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:32,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253355874] [2023-12-16 08:29:32,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253355874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:32,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:32,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 08:29:32,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714179128] [2023-12-16 08:29:32,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:32,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 08:29:32,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:32,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 08:29:32,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:29:32,359 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 9 states, 9 states have (on average 19.555555555555557) internal successors, (176), 8 states have internal predecessors, (176), 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) [2023-12-16 08:29:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:36,771 INFO L93 Difference]: Finished difference Result 588 states and 1007 transitions. [2023-12-16 08:29:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 08:29:36,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.555555555555557) internal successors, (176), 8 states have internal predecessors, (176), 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 176 [2023-12-16 08:29:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:36,774 INFO L225 Difference]: With dead ends: 588 [2023-12-16 08:29:36,774 INFO L226 Difference]: Without dead ends: 351 [2023-12-16 08:29:36,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-16 08:29:36,777 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 299 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:36,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 409 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-16 08:29:36,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-16 08:29:36,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-12-16 08:29:36,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.46) internal successors, (511), 350 states have internal predecessors, (511), 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) [2023-12-16 08:29:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 511 transitions. [2023-12-16 08:29:36,798 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 511 transitions. Word has length 176 [2023-12-16 08:29:36,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:36,799 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 511 transitions. [2023-12-16 08:29:36,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.555555555555557) internal successors, (176), 8 states have internal predecessors, (176), 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) [2023-12-16 08:29:36,799 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 511 transitions. [2023-12-16 08:29:36,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 08:29:36,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:36,810 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:29:36,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:29:37,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:37,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:37,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:37,020 INFO L85 PathProgramCache]: Analyzing trace with hash -638033843, now seen corresponding path program 1 times [2023-12-16 08:29:37,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:37,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244899493] [2023-12-16 08:29:37,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:37,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:37,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:37,025 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:29:37,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 08:29:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:37,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 08:29:37,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:29:53,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:53,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:53,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244899493] [2023-12-16 08:29:53,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244899493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:53,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:53,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 08:29:53,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724354779] [2023-12-16 08:29:53,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:53,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:29:53,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:53,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:29:53,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:29:53,544 INFO L87 Difference]: Start difference. First operand 351 states and 511 transitions. Second operand has 10 states, 10 states have (on average 18.3) internal successors, (183), 9 states have internal predecessors, (183), 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) [2023-12-16 08:29:56,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:56,803 INFO L93 Difference]: Finished difference Result 729 states and 1181 transitions. [2023-12-16 08:29:56,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 08:29:56,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 9 states have internal predecessors, (183), 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 183 [2023-12-16 08:29:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:56,807 INFO L225 Difference]: With dead ends: 729 [2023-12-16 08:29:56,807 INFO L226 Difference]: Without dead ends: 492 [2023-12-16 08:29:56,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-12-16 08:29:56,809 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 337 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 2399 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 2399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:56,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 330 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 2399 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 08:29:56,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-16 08:29:56,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2023-12-16 08:29:56,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 491 states have (on average 1.340122199592668) internal successors, (658), 491 states have internal predecessors, (658), 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) [2023-12-16 08:29:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 658 transitions. [2023-12-16 08:29:56,849 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 658 transitions. Word has length 183 [2023-12-16 08:29:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:56,856 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 658 transitions. [2023-12-16 08:29:56,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 9 states have internal predecessors, (183), 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) [2023-12-16 08:29:56,857 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 658 transitions. [2023-12-16 08:29:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-16 08:29:56,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:56,860 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-16 08:29:56,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:29:57,063 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 [2023-12-16 08:29:57,064 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:57,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1093556594, now seen corresponding path program 1 times [2023-12-16 08:29:57,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:57,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094321656] [2023-12-16 08:29:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:57,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:57,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:57,075 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) [2023-12-16 08:29:57,079 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 [2023-12-16 08:29:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:57,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 08:29:57,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:30:00,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:00,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:00,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094321656] [2023-12-16 08:30:00,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094321656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:00,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:00,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:00,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744772359] [2023-12-16 08:30:00,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:00,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:30:00,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:00,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:30:00,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:30:00,332 INFO L87 Difference]: Start difference. First operand 492 states and 658 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-12-16 08:30:01,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:01,607 INFO L93 Difference]: Finished difference Result 887 states and 1337 transitions. [2023-12-16 08:30:01,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:30:01,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 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 191 [2023-12-16 08:30:01,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:01,610 INFO L225 Difference]: With dead ends: 887 [2023-12-16 08:30:01,611 INFO L226 Difference]: Without dead ends: 464 [2023-12-16 08:30:01,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:30:01,623 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 299 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:01,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 44 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 08:30:01,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-16 08:30:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2023-12-16 08:30:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.2267818574514038) internal successors, (568), 463 states have internal predecessors, (568), 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) [2023-12-16 08:30:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 568 transitions. [2023-12-16 08:30:01,656 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 568 transitions. Word has length 191 [2023-12-16 08:30:01,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:01,656 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 568 transitions. [2023-12-16 08:30:01,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-12-16 08:30:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 568 transitions. [2023-12-16 08:30:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-16 08:30:01,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:01,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:01,667 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 [2023-12-16 08:30:01,863 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 [2023-12-16 08:30:01,864 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:01,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:01,865 INFO L85 PathProgramCache]: Analyzing trace with hash 996590936, now seen corresponding path program 1 times [2023-12-16 08:30:01,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:01,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745290343] [2023-12-16 08:30:01,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:01,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:01,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:01,875 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:30:01,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 08:30:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:02,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:30:02,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:02,171 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:30:02,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:02,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:02,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745290343] [2023-12-16 08:30:02,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745290343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:02,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:02,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:30:02,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631563029] [2023-12-16 08:30:02,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:02,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:30:02,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:02,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:30:02,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:02,201 INFO L87 Difference]: Start difference. First operand 464 states and 568 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 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) [2023-12-16 08:30:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:03,433 INFO L93 Difference]: Finished difference Result 891 states and 1185 transitions. [2023-12-16 08:30:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:30:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 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 204 [2023-12-16 08:30:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:03,436 INFO L225 Difference]: With dead ends: 891 [2023-12-16 08:30:03,436 INFO L226 Difference]: Without dead ends: 670 [2023-12-16 08:30:03,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:30:03,437 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 188 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:03,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 199 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 08:30:03,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2023-12-16 08:30:03,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 667. [2023-12-16 08:30:03,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 666 states have (on average 1.1861861861861862) internal successors, (790), 666 states have internal predecessors, (790), 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) [2023-12-16 08:30:03,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 790 transitions. [2023-12-16 08:30:03,450 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 790 transitions. Word has length 204 [2023-12-16 08:30:03,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:03,451 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 790 transitions. [2023-12-16 08:30:03,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 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) [2023-12-16 08:30:03,451 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 790 transitions. [2023-12-16 08:30:03,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-16 08:30:03,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:03,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:03,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 08:30:03,656 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 [2023-12-16 08:30:03,656 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:03,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1600395689, now seen corresponding path program 1 times [2023-12-16 08:30:03,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:03,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622834005] [2023-12-16 08:30:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:03,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:03,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:03,660 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) [2023-12-16 08:30:03,664 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 [2023-12-16 08:30:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:03,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 08:30:03,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:06,997 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:30:06,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:06,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:06,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622834005] [2023-12-16 08:30:06,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622834005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:06,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:06,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:30:06,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251510224] [2023-12-16 08:30:06,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:06,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:30:06,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:06,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:30:06,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:30:07,000 INFO L87 Difference]: Start difference. First operand 667 states and 790 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-12-16 08:30:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:08,489 INFO L93 Difference]: Finished difference Result 1681 states and 2132 transitions. [2023-12-16 08:30:08,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:30:08,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 3 states have internal predecessors, (207), 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 207 [2023-12-16 08:30:08,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:08,493 INFO L225 Difference]: With dead ends: 1681 [2023-12-16 08:30:08,493 INFO L226 Difference]: Without dead ends: 1083 [2023-12-16 08:30:08,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:30:08,495 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 205 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:30:08,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 100 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 08:30:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2023-12-16 08:30:08,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1081. [2023-12-16 08:30:08,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1080 states have (on average 1.2101851851851853) internal successors, (1307), 1080 states have internal predecessors, (1307), 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) [2023-12-16 08:30:08,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1307 transitions. [2023-12-16 08:30:08,514 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1307 transitions. Word has length 207 [2023-12-16 08:30:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:08,514 INFO L495 AbstractCegarLoop]: Abstraction has 1081 states and 1307 transitions. [2023-12-16 08:30:08,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-12-16 08:30:08,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1307 transitions. [2023-12-16 08:30:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-12-16 08:30:08,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:08,518 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 08:30:08,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 08:30:08,721 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 [2023-12-16 08:30:08,722 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:08,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:08,722 INFO L85 PathProgramCache]: Analyzing trace with hash 106289929, now seen corresponding path program 1 times [2023-12-16 08:30:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:08,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921687711] [2023-12-16 08:30:08,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:08,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:08,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:08,726 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:30:08,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 08:30:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:09,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-16 08:30:09,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 08:30:18,691 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:30:18,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:30:18,699 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 [2023-12-16 08:30:18,718 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:30:18,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:30:18,897 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 273 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-18-6-1 context. [2023-12-16 08:30:18,900 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:18,902 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:30:18,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:30:18 BoogieIcfgContainer [2023-12-16 08:30:18,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:30:18,905 INFO L158 Benchmark]: Toolchain (without parser) took 66238.89ms. Allocated memory was 185.6MB in the beginning and 911.2MB in the end (delta: 725.6MB). Free memory was 131.3MB in the beginning and 651.6MB in the end (delta: -520.3MB). Peak memory consumption was 206.4MB. Max. memory is 8.0GB. [2023-12-16 08:30:18,906 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 154.1MB. Free memory was 100.3MB in the beginning and 100.2MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:30:18,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 837.99ms. Allocated memory is still 185.6MB. Free memory was 131.1MB in the beginning and 118.8MB in the end (delta: 12.4MB). Peak memory consumption was 50.6MB. Max. memory is 8.0GB. [2023-12-16 08:30:18,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.87ms. Allocated memory is still 185.6MB. Free memory was 118.8MB in the beginning and 103.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 08:30:18,906 INFO L158 Benchmark]: Boogie Preprocessor took 165.67ms. Allocated memory is still 185.6MB. Free memory was 103.6MB in the beginning and 91.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 08:30:18,907 INFO L158 Benchmark]: RCFGBuilder took 2389.90ms. Allocated memory was 185.6MB in the beginning and 229.6MB in the end (delta: 44.0MB). Free memory was 91.0MB in the beginning and 120.1MB in the end (delta: -29.1MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. [2023-12-16 08:30:18,907 INFO L158 Benchmark]: TraceAbstraction took 62708.54ms. Allocated memory was 229.6MB in the beginning and 911.2MB in the end (delta: 681.6MB). Free memory was 119.6MB in the beginning and 651.6MB in the end (delta: -532.0MB). Peak memory consumption was 149.7MB. Max. memory is 8.0GB. [2023-12-16 08:30:18,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 154.1MB. Free memory was 100.3MB in the beginning and 100.2MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 837.99ms. Allocated memory is still 185.6MB. Free memory was 131.1MB in the beginning and 118.8MB in the end (delta: 12.4MB). Peak memory consumption was 50.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 128.87ms. Allocated memory is still 185.6MB. Free memory was 118.8MB in the beginning and 103.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 165.67ms. Allocated memory is still 185.6MB. Free memory was 103.6MB in the beginning and 91.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 2389.90ms. Allocated memory was 185.6MB in the beginning and 229.6MB in the end (delta: 44.0MB). Free memory was 91.0MB in the beginning and 120.1MB in the end (delta: -29.1MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. * TraceAbstraction took 62708.54ms. Allocated memory was 229.6MB in the beginning and 911.2MB in the end (delta: 681.6MB). Free memory was 119.6MB in the beginning and 651.6MB in the end (delta: -532.0MB). Peak memory consumption was 149.7MB. 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: 1576]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1576). Cancelled while NwaCegarLoop was analyzing trace of length 273 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-18-6-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.6s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1328 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1328 mSDsluCounter, 1474 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 278 mSDsCounter, 691 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7332 IncrementalHoareTripleChecker+Invalid, 8023 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 691 mSolverCounterUnsat, 1196 mSDtfsCounter, 7332 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1139 GetRequests, 1111 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1081occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 37.8s InterpolantComputationTime, 1137 NumberOfCodeBlocks, 1137 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1131 ConstructedInterpolants, 0 QuantifiedInterpolants, 27919 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1613 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 83/83 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