/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-39.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 09:36:15,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 09:36:15,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 09:36:15,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 09:36:15,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 09:36:15,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 09:36:15,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 09:36:15,805 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 09:36:15,806 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 09:36:15,810 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 09:36:15,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 09:36:15,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 09:36:15,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 09:36:15,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 09:36:15,813 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 09:36:15,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 09:36:15,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 09:36:15,814 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 09:36:15,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 09:36:15,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 09:36:15,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 09:36:15,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 09:36:15,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 09:36:15,815 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 09:36:15,815 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 09:36:15,815 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 09:36:15,816 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 09:36:15,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 09:36:15,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 09:36:15,816 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 09:36:15,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 09:36:15,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 09:36:15,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 09:36:15,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 09:36:15,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 09:36:15,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 09:36:15,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 09:36:15,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 09:36:15,819 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 09:36:15,819 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 09:36:15,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 09:36:15,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 09:36:15,819 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 09:36:15,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 09:36:15,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 09:36:15,820 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 09:36:15,820 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 09:36:16,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 09:36:16,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 09:36:16,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 09:36:16,077 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 09:36:16,077 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 09:36:16,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-39.i [2023-12-23 09:36:17,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 09:36:17,495 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 09:36:17,496 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-39.i [2023-12-23 09:36:17,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00517c647/c4080fcec0094f21a67510ccfca5a889/FLAG31aa6703c [2023-12-23 09:36:17,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00517c647/c4080fcec0094f21a67510ccfca5a889 [2023-12-23 09:36:17,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 09:36:17,519 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 09:36:17,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 09:36:17,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 09:36:17,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 09:36:17,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:17,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e52039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17, skipping insertion in model container [2023-12-23 09:36:17,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:17,572 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 09:36:17,713 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-39.i[919,932] [2023-12-23 09:36:17,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 09:36:17,811 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 09:36:17,822 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-39.i[919,932] [2023-12-23 09:36:17,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 09:36:17,895 INFO L206 MainTranslator]: Completed translation [2023-12-23 09:36:17,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17 WrapperNode [2023-12-23 09:36:17,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 09:36:17,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 09:36:17,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 09:36:17,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 09:36:17,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:17,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:17,943 INFO L138 Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 232 [2023-12-23 09:36:17,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 09:36:17,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 09:36:17,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 09:36:17,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 09:36:17,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:17,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:17,965 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:17,980 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 09:36:17,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:17,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:18,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:18,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:18,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:18,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:18,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 09:36:18,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 09:36:18,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 09:36:18,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 09:36:18,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (1/1) ... [2023-12-23 09:36:18,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 09:36:18,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 09:36:18,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 09:36:18,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 09:36:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 09:36:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 09:36:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 09:36:18,092 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 09:36:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 09:36:18,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 09:36:18,199 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 09:36:18,200 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 09:36:25,565 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 09:36:25,635 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 09:36:25,635 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 09:36:25,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:36:25 BoogieIcfgContainer [2023-12-23 09:36:25,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 09:36:25,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 09:36:25,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 09:36:25,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 09:36:25,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:36:17" (1/3) ... [2023-12-23 09:36:25,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ac1a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:36:25, skipping insertion in model container [2023-12-23 09:36:25,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:36:17" (2/3) ... [2023-12-23 09:36:25,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ac1a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:36:25, skipping insertion in model container [2023-12-23 09:36:25,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:36:25" (3/3) ... [2023-12-23 09:36:25,643 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-39.i [2023-12-23 09:36:25,661 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 09:36:25,662 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 09:36:25,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 09:36:25,719 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;@1ca9dc50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 09:36:25,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 09:36:25,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 55 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 09:36:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-23 09:36:25,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:36:25,739 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:36:25,739 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:36:25,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:36:25,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1272554585, now seen corresponding path program 1 times [2023-12-23 09:36:25,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:36:25,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392532777] [2023-12-23 09:36:25,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:36:25,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 09:36:25,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:36:25,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 09:36:25,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 09:36:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:36:26,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 09:36:26,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:36:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1218 proven. 0 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2023-12-23 09:36:26,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 09:36:26,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:36:26,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392532777] [2023-12-23 09:36:26,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392532777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 09:36:26,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 09:36:26,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 09:36:26,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745783794] [2023-12-23 09:36:26,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 09:36:26,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 09:36:26,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:36:26,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 09:36:26,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 09:36:26,336 INFO L87 Difference]: Start difference. First operand has 95 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 55 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 09:36:26,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:36:26,480 INFO L93 Difference]: Finished difference Result 187 states and 342 transitions. [2023-12-23 09:36:26,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 09:36:26,489 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 231 [2023-12-23 09:36:26,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:36:26,496 INFO L225 Difference]: With dead ends: 187 [2023-12-23 09:36:26,496 INFO L226 Difference]: Without dead ends: 93 [2023-12-23 09:36:26,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 09:36:26,503 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 09:36:26,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 09:36:26,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-23 09:36:26,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-12-23 09:36:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 53 states have internal predecessors, (72), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-23 09:36:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 148 transitions. [2023-12-23 09:36:26,545 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 148 transitions. Word has length 231 [2023-12-23 09:36:26,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:36:26,545 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 148 transitions. [2023-12-23 09:36:26,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 09:36:26,546 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 148 transitions. [2023-12-23 09:36:26,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-23 09:36:26,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:36:26,550 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:36:26,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 09:36:26,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 09:36:26,762 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:36:26,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:36:26,763 INFO L85 PathProgramCache]: Analyzing trace with hash -374662519, now seen corresponding path program 1 times [2023-12-23 09:36:26,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:36:26,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250407069] [2023-12-23 09:36:26,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:36:26,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 09:36:26,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:36:26,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 09:36:26,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 09:36:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:36:27,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 09:36:27,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:36:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-23 09:36:29,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 09:36:29,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:36:29,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250407069] [2023-12-23 09:36:29,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250407069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 09:36:29,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 09:36:29,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 09:36:29,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950019392] [2023-12-23 09:36:29,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 09:36:29,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 09:36:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:36:29,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 09:36:29,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 09:36:29,996 INFO L87 Difference]: Start difference. First operand 93 states and 148 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 09:36:30,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:36:30,710 INFO L93 Difference]: Finished difference Result 278 states and 443 transitions. [2023-12-23 09:36:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 09:36:30,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 231 [2023-12-23 09:36:30,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:36:30,723 INFO L225 Difference]: With dead ends: 278 [2023-12-23 09:36:30,723 INFO L226 Difference]: Without dead ends: 186 [2023-12-23 09:36:30,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 09:36:30,726 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 111 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-23 09:36:30,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 568 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-23 09:36:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-12-23 09:36:30,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 159. [2023-12-23 09:36:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 80 states have (on average 1.2375) internal successors, (99), 80 states have internal predecessors, (99), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-23 09:36:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 251 transitions. [2023-12-23 09:36:30,775 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 251 transitions. Word has length 231 [2023-12-23 09:36:30,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:36:30,777 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 251 transitions. [2023-12-23 09:36:30,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 09:36:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 251 transitions. [2023-12-23 09:36:30,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-23 09:36:30,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:36:30,782 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:36:30,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 09:36:30,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 09:36:30,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:36:30,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:36:30,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1213685383, now seen corresponding path program 1 times [2023-12-23 09:36:30,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:36:30,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470336808] [2023-12-23 09:36:30,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:36:30,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 09:36:30,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:36:30,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 09:36:31,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 09:36:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:36:31,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 09:36:31,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:36:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-23 09:36:31,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 09:36:31,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 09:36:31,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470336808] [2023-12-23 09:36:31,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470336808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 09:36:31,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 09:36:31,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 09:36:31,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776303442] [2023-12-23 09:36:31,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 09:36:31,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 09:36:31,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 09:36:31,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 09:36:31,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 09:36:31,386 INFO L87 Difference]: Start difference. First operand 159 states and 251 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 09:36:31,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 09:36:31,551 INFO L93 Difference]: Finished difference Result 295 states and 464 transitions. [2023-12-23 09:36:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 09:36:31,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 231 [2023-12-23 09:36:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 09:36:31,554 INFO L225 Difference]: With dead ends: 295 [2023-12-23 09:36:31,554 INFO L226 Difference]: Without dead ends: 203 [2023-12-23 09:36:31,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 09:36:31,556 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 63 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 09:36:31,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 327 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 09:36:31,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-23 09:36:31,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 200. [2023-12-23 09:36:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 104 states have (on average 1.25) internal successors, (130), 105 states have internal predecessors, (130), 92 states have call successors, (92), 3 states have call predecessors, (92), 3 states have return successors, (92), 91 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-23 09:36:31,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 314 transitions. [2023-12-23 09:36:31,596 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 314 transitions. Word has length 231 [2023-12-23 09:36:31,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 09:36:31,597 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 314 transitions. [2023-12-23 09:36:31,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-23 09:36:31,597 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 314 transitions. [2023-12-23 09:36:31,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-23 09:36:31,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 09:36:31,600 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 09:36:31,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-23 09:36:31,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 09:36:31,812 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 09:36:31,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 09:36:31,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1306274551, now seen corresponding path program 1 times [2023-12-23 09:36:31,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 09:36:31,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310015532] [2023-12-23 09:36:31,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 09:36:31,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 09:36:31,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 09:36:31,815 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 09:36:31,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 09:36:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 09:36:32,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-23 09:36:32,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 09:37:14,137 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:37:41,382 WARN L293 SmtUtils]: Spent 23.43s on a formula simplification that was a NOOP. DAG size: 89 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 09:38:03,605 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:38:33,513 WARN L293 SmtUtils]: Spent 22.45s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 09:38:54,220 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:39:26,207 WARN L293 SmtUtils]: Spent 23.74s on a formula simplification that was a NOOP. DAG size: 94 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 09:39:48,177 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:40:20,157 WARN L293 SmtUtils]: Spent 23.26s on a formula simplification that was a NOOP. DAG size: 98 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 09:40:41,719 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:41:08,935 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:41:36,617 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:42:01,974 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:42:28,312 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 09:42:56,823 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 09:50:40,239 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 09:50:40,239 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 09:50:41,484 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 (5)] Ended with exit code 0 [2023-12-23 09:50:41,607 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 [2023-12-23 09:50:41,785 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 09:50:41,785 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 232 with TraceHistMax 38,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-20-2-2-2-2-2-2-2-2-2-2-2-2-2-4-3-2-2-2-2-4-3-4-3-4-3-2-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-93-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-1 context. [2023-12-23 09:50:41,790 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-23 09:50:41,793 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 09:50:41,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:50:41 BoogieIcfgContainer [2023-12-23 09:50:41,798 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 09:50:41,799 INFO L158 Benchmark]: Toolchain (without parser) took 864278.90ms. Allocated memory was 206.6MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 160.1MB in the beginning and 6.1GB in the end (delta: -5.9GB). Peak memory consumption was 6.0GB. Max. memory is 8.0GB. [2023-12-23 09:50:41,801 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 206.6MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 09:50:41,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.62ms. Allocated memory is still 206.6MB. Free memory was 160.1MB in the beginning and 142.8MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 09:50:41,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.43ms. Allocated memory is still 206.6MB. Free memory was 142.8MB in the beginning and 139.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 09:50:41,803 INFO L158 Benchmark]: Boogie Preprocessor took 71.30ms. Allocated memory is still 206.6MB. Free memory was 139.7MB in the beginning and 135.9MB in the end (delta: 3.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 09:50:41,803 INFO L158 Benchmark]: RCFGBuilder took 7619.50ms. Allocated memory was 206.6MB in the beginning and 248.5MB in the end (delta: 41.9MB). Free memory was 135.9MB in the beginning and 207.5MB in the end (delta: -71.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-23 09:50:41,803 INFO L158 Benchmark]: TraceAbstraction took 856159.83ms. Allocated memory was 248.5MB in the beginning and 7.7GB in the end (delta: 7.4GB). Free memory was 206.9MB in the beginning and 6.1GB in the end (delta: -5.9GB). Peak memory consumption was 6.0GB. Max. memory is 8.0GB. [2023-12-23 09:50:41,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 206.6MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 375.62ms. Allocated memory is still 206.6MB. Free memory was 160.1MB in the beginning and 142.8MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.43ms. Allocated memory is still 206.6MB. Free memory was 142.8MB in the beginning and 139.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.30ms. Allocated memory is still 206.6MB. Free memory was 139.7MB in the beginning and 135.9MB in the end (delta: 3.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 7619.50ms. Allocated memory was 206.6MB in the beginning and 248.5MB in the end (delta: 41.9MB). Free memory was 135.9MB in the beginning and 207.5MB in the end (delta: -71.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 856159.83ms. Allocated memory was 248.5MB in the beginning and 7.7GB in the end (delta: 7.4GB). Free memory was 206.9MB in the beginning and 6.1GB in the end (delta: -5.9GB). Peak memory consumption was 6.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 232 with TraceHistMax 38,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-20-2-2-2-2-2-2-2-2-2-2-2-2-2-4-3-2-2-2-2-4-3-4-3-4-3-2-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-93-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 856.1s, OverallIterations: 4, TraceHistogramMax: 38, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 174 mSDsluCounter, 1040 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 563 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 477 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 693 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=3, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 693 NumberOfCodeBlocks, 693 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 690 ConstructedInterpolants, 0 QuantifiedInterpolants, 2400 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1146 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 8436/8436 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