/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-ps-cn_file-50.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:48:46,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:48:46,754 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 12:48:46,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:48:46,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:48:46,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:48:46,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:48:46,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:48:46,790 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:48:46,793 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:48:46,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:48:46,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:48:46,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:48:46,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:48:46,796 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:48:46,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:48:46,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:48:46,797 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:48:46,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:48:46,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:48:46,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:48:46,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:48:46,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:48:46,798 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:48:46,799 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:48:46,799 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:48:46,799 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:48:46,799 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:48:46,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:48:46,800 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:48:46,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:48:46,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:48:46,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:48:46,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:48:46,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:48:46,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:48:46,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:48:46,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:48:46,802 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:48:46,802 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:48:46,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:48:46,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:48:46,803 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:48:46,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:48:46,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:48:46,804 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:48:46,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:48:47,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:48:47,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:48:47,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:48:47,086 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:48:47,086 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:48:47,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-50.i [2023-12-16 12:48:48,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:48:48,630 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:48:48,630 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-50.i [2023-12-16 12:48:48,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3c45751c/a6cd0fa3eaaa4206a22dcb677ea9740b/FLAG1b9087c39 [2023-12-16 12:48:48,658 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3c45751c/a6cd0fa3eaaa4206a22dcb677ea9740b [2023-12-16 12:48:48,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:48:48,662 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:48:48,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:48:48,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:48:48,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:48:48,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:48:48" (1/1) ... [2023-12-16 12:48:48,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460502f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:48, skipping insertion in model container [2023-12-16 12:48:48,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:48:48" (1/1) ... [2023-12-16 12:48:48,715 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:48:48,857 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-ps-cn_file-50.i[919,932] [2023-12-16 12:48:48,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:48:48,954 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:48:48,966 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-ps-cn_file-50.i[919,932] [2023-12-16 12:48:49,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:48:49,023 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:48:49,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49 WrapperNode [2023-12-16 12:48:49,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:48:49,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:48:49,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:48:49,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:48:49,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,103 INFO L138 Inliner]: procedures = 27, calls = 52, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 225 [2023-12-16 12:48:49,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:48:49,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:48:49,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:48:49,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:48:49,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,128 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,143 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 12:48:49,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:48:49,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:48:49,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:48:49,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:48:49,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (1/1) ... [2023-12-16 12:48:49,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:48:49,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:48:49,221 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 12:48:49,243 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 12:48:49,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:48:49,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:48:49,260 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:48:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:48:49,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:48:49,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:48:49,379 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:48:49,382 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:48:58,730 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:48:58,787 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:48:58,787 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:48:58,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:48:58 BoogieIcfgContainer [2023-12-16 12:48:58,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:48:58,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:48:58,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:48:58,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:48:58,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:48:48" (1/3) ... [2023-12-16 12:48:58,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd597d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:48:58, skipping insertion in model container [2023-12-16 12:48:58,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:48:49" (2/3) ... [2023-12-16 12:48:58,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd597d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:48:58, skipping insertion in model container [2023-12-16 12:48:58,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:48:58" (3/3) ... [2023-12-16 12:48:58,797 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-50.i [2023-12-16 12:48:58,816 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:48:58,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:48:58,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:48:58,877 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;@167ed800, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:48:58,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:48:58,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 55 states have internal predecessors, (75), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 12:48:58,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 12:48:58,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:48:58,905 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:58,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:48:58,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:48:58,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1912159997, now seen corresponding path program 1 times [2023-12-16 12:48:58,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:48:58,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897512153] [2023-12-16 12:48:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:48:58,930 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 12:48:58,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:48:58,932 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 12:48:58,964 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 12:48:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:48:59,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:48:59,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:48:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1700 trivial. 0 not checked. [2023-12-16 12:48:59,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:48:59,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:48:59,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897512153] [2023-12-16 12:48:59,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897512153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:48:59,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:48:59,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:48:59,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565227988] [2023-12-16 12:48:59,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:48:59,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:48:59,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:48:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:48:59,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:48:59,770 INFO L87 Difference]: Start difference. First operand has 96 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 55 states have internal predecessors, (75), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-16 12:48:59,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:48:59,961 INFO L93 Difference]: Finished difference Result 189 states and 343 transitions. [2023-12-16 12:48:59,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:48:59,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 239 [2023-12-16 12:48:59,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:48:59,980 INFO L225 Difference]: With dead ends: 189 [2023-12-16 12:48:59,980 INFO L226 Difference]: Without dead ends: 94 [2023-12-16 12:48:59,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 238 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 12:48:59,987 INFO L413 NwaCegarLoop]: 144 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, 144 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 [2023-12-16 12:48:59,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 12:49:00,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-16 12:49:00,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-16 12:49:00,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 53 states have internal predecessors, (69), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 12:49:00,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2023-12-16 12:49:00,046 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 239 [2023-12-16 12:49:00,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:49:00,047 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2023-12-16 12:49:00,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-16 12:49:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2023-12-16 12:49:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 12:49:00,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:49:00,053 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:00,080 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 [2023-12-16 12:49:00,280 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 12:49:00,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:49:00,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:49:00,282 INFO L85 PathProgramCache]: Analyzing trace with hash -574907849, now seen corresponding path program 1 times [2023-12-16 12:49:00,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:49:00,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480584141] [2023-12-16 12:49:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:49:00,283 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 12:49:00,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:49:00,285 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 12:49:00,286 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 12:49:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:49:00,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 12:49:00,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:49:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 1426 proven. 75 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2023-12-16 12:49:03,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:49:05,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 345 proven. 93 refuted. 0 times theorem prover too weak. 2526 trivial. 0 not checked. [2023-12-16 12:49:05,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:49:05,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480584141] [2023-12-16 12:49:05,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480584141] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:49:05,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:49:05,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 24 [2023-12-16 12:49:05,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322089900] [2023-12-16 12:49:05,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:49:05,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 12:49:05,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:49:05,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 12:49:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2023-12-16 12:49:05,827 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 24 states, 24 states have (on average 3.625) internal successors, (87), 24 states have internal predecessors, (87), 5 states have call successors, (50), 5 states have call predecessors, (50), 13 states have return successors, (51), 5 states have call predecessors, (51), 5 states have call successors, (51) [2023-12-16 12:49:13,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:49:13,928 INFO L93 Difference]: Finished difference Result 385 states and 569 transitions. [2023-12-16 12:49:13,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-16 12:49:13,930 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.625) internal successors, (87), 24 states have internal predecessors, (87), 5 states have call successors, (50), 5 states have call predecessors, (50), 13 states have return successors, (51), 5 states have call predecessors, (51), 5 states have call successors, (51) Word has length 239 [2023-12-16 12:49:13,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:49:13,934 INFO L225 Difference]: With dead ends: 385 [2023-12-16 12:49:13,934 INFO L226 Difference]: Without dead ends: 292 [2023-12-16 12:49:13,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 459 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1111 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1091, Invalid=2941, Unknown=0, NotChecked=0, Total=4032 [2023-12-16 12:49:13,938 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 344 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-16 12:49:13,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 770 Invalid, 1549 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [490 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-16 12:49:13,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-16 12:49:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 260. [2023-12-16 12:49:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 144 states have (on average 1.2152777777777777) internal successors, (175), 145 states have internal predecessors, (175), 105 states have call successors, (105), 10 states have call predecessors, (105), 10 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-16 12:49:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 385 transitions. [2023-12-16 12:49:14,026 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 385 transitions. Word has length 239 [2023-12-16 12:49:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:49:14,028 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 385 transitions. [2023-12-16 12:49:14,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.625) internal successors, (87), 24 states have internal predecessors, (87), 5 states have call successors, (50), 5 states have call predecessors, (50), 13 states have return successors, (51), 5 states have call predecessors, (51), 5 states have call successors, (51) [2023-12-16 12:49:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 385 transitions. [2023-12-16 12:49:14,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 12:49:14,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:49:14,032 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:14,055 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 12:49:14,256 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 12:49:14,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:49:14,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:49:14,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2131711545, now seen corresponding path program 1 times [2023-12-16 12:49:14,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:49:14,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255566731] [2023-12-16 12:49:14,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:49:14,258 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 12:49:14,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:49:14,261 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 12:49:14,266 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 12:49:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:49:14,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 12:49:14,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:49:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2023-12-16 12:49:15,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:49:15,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:49:15,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255566731] [2023-12-16 12:49:15,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255566731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:49:15,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:49:15,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 12:49:15,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376082327] [2023-12-16 12:49:15,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:49:15,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 12:49:15,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:49:15,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 12:49:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 12:49:15,183 INFO L87 Difference]: Start difference. First operand 260 states and 385 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-12-16 12:49:15,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:49:15,565 INFO L93 Difference]: Finished difference Result 539 states and 786 transitions. [2023-12-16 12:49:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 12:49:15,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 239 [2023-12-16 12:49:15,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:49:15,570 INFO L225 Difference]: With dead ends: 539 [2023-12-16 12:49:15,570 INFO L226 Difference]: Without dead ends: 323 [2023-12-16 12:49:15,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 12:49:15,573 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 149 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 12:49:15,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 651 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 12:49:15,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-16 12:49:15,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 299. [2023-12-16 12:49:15,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 166 states have (on average 1.1746987951807228) internal successors, (195), 167 states have internal predecessors, (195), 117 states have call successors, (117), 15 states have call predecessors, (117), 15 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2023-12-16 12:49:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 429 transitions. [2023-12-16 12:49:15,621 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 429 transitions. Word has length 239 [2023-12-16 12:49:15,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:49:15,622 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 429 transitions. [2023-12-16 12:49:15,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-12-16 12:49:15,622 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 429 transitions. [2023-12-16 12:49:15,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-16 12:49:15,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:49:15,625 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:15,646 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 (4)] Ended with exit code 0 [2023-12-16 12:49:15,840 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 12:49:15,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:49:15,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:49:15,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2105997449, now seen corresponding path program 1 times [2023-12-16 12:49:15,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:49:15,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303098132] [2023-12-16 12:49:15,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:49:15,842 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 12:49:15,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:49:15,844 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 12:49:15,850 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 12:49:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:49:16,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:49:16,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:49:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2023-12-16 12:49:16,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:49:16,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:49:16,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303098132] [2023-12-16 12:49:16,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303098132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:49:16,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:49:16,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:49:16,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380192744] [2023-12-16 12:49:16,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:49:16,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:49:16,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:49:16,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:49:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:49:16,582 INFO L87 Difference]: Start difference. First operand 299 states and 429 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-12-16 12:49:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:49:17,146 INFO L93 Difference]: Finished difference Result 523 states and 747 transitions. [2023-12-16 12:49:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:49:17,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 239 [2023-12-16 12:49:17,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:49:17,154 INFO L225 Difference]: With dead ends: 523 [2023-12-16 12:49:17,154 INFO L226 Difference]: Without dead ends: 307 [2023-12-16 12:49:17,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 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 12:49:17,160 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 88 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 12:49:17,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 289 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 12:49:17,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-16 12:49:17,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 196. [2023-12-16 12:49:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 106 states have (on average 1.1320754716981132) internal successors, (120), 107 states have internal predecessors, (120), 78 states have call successors, (78), 11 states have call predecessors, (78), 11 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 12:49:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 276 transitions. [2023-12-16 12:49:17,195 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 276 transitions. Word has length 239 [2023-12-16 12:49:17,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:49:17,196 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 276 transitions. [2023-12-16 12:49:17,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-12-16 12:49:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 276 transitions. [2023-12-16 12:49:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-16 12:49:17,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:49:17,199 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:17,223 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 12:49:17,420 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 12:49:17,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:49:17,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:49:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1465419660, now seen corresponding path program 1 times [2023-12-16 12:49:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:49:17,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281206926] [2023-12-16 12:49:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:49:17,422 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 12:49:17,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:49:17,423 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 12:49:17,455 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 12:49:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:49:18,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-16 12:49:18,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:49:54,508 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 12:49:54,508 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:49:55,026 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:49:55,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:49:55,227 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 12:49:55,228 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 241 with TraceHistMax 39,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-14-3-2-2-2-1 context. [2023-12-16 12:49:55,234 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 12:49:55,237 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:49:55,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:49:55 BoogieIcfgContainer [2023-12-16 12:49:55,238 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:49:55,239 INFO L158 Benchmark]: Toolchain (without parser) took 66576.86ms. Allocated memory was 175.1MB in the beginning and 215.0MB in the end (delta: 39.8MB). Free memory was 128.0MB in the beginning and 124.3MB in the end (delta: 3.6MB). Peak memory consumption was 106.7MB. Max. memory is 8.0GB. [2023-12-16 12:49:55,239 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 175.1MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:49:55,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.56ms. Allocated memory is still 175.1MB. Free memory was 127.7MB in the beginning and 110.6MB in the end (delta: 17.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 12:49:55,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.45ms. Allocated memory is still 175.1MB. Free memory was 110.6MB in the beginning and 107.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:49:55,240 INFO L158 Benchmark]: Boogie Preprocessor took 68.68ms. Allocated memory is still 175.1MB. Free memory was 107.5MB in the beginning and 103.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 12:49:55,240 INFO L158 Benchmark]: RCFGBuilder took 9614.07ms. Allocated memory is still 175.1MB. Free memory was 103.3MB in the beginning and 147.1MB in the end (delta: -43.9MB). Peak memory consumption was 32.0MB. Max. memory is 8.0GB. [2023-12-16 12:49:55,241 INFO L158 Benchmark]: TraceAbstraction took 56447.25ms. Allocated memory was 175.1MB in the beginning and 215.0MB in the end (delta: 39.8MB). Free memory was 146.6MB in the beginning and 124.3MB in the end (delta: 22.2MB). Peak memory consumption was 124.0MB. Max. memory is 8.0GB. [2023-12-16 12:49:55,242 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 175.1MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 358.56ms. Allocated memory is still 175.1MB. Free memory was 127.7MB in the beginning and 110.6MB in the end (delta: 17.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 79.45ms. Allocated memory is still 175.1MB. Free memory was 110.6MB in the beginning and 107.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 68.68ms. Allocated memory is still 175.1MB. Free memory was 107.5MB in the beginning and 103.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 9614.07ms. Allocated memory is still 175.1MB. Free memory was 103.3MB in the beginning and 147.1MB in the end (delta: -43.9MB). Peak memory consumption was 32.0MB. Max. memory is 8.0GB. * TraceAbstraction took 56447.25ms. Allocated memory was 175.1MB in the beginning and 215.0MB in the end (delta: 39.8MB). Free memory was 146.6MB in the beginning and 124.3MB in the end (delta: 22.2MB). Peak memory consumption was 124.0MB. 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 241 with TraceHistMax 39,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-14-3-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.4s, OverallIterations: 5, TraceHistogramMax: 39, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 608 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 581 mSDsluCounter, 1854 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1051 mSDsCounter, 491 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1094 IncrementalHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 491 mSolverCounterUnsat, 803 mSDtfsCounter, 1094 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1237 GetRequests, 1170 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1111 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=3, InterpolantAutomatonStates: 61, 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, 4 MinimizatonAttempts, 167 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 956 NumberOfCodeBlocks, 956 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1190 ConstructedInterpolants, 4 QuantifiedInterpolants, 2481 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1542 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 14652/14820 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