/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_fillercodesize_ps-cn-250_file-42.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:05:07,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:05:07,780 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 11:05:07,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:05:07,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:05:07,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:05:07,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:05:07,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:05:07,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:05:07,822 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:05:07,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:05:07,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:05:07,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:05:07,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:05:07,825 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:05:07,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:05:07,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:05:07,826 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:05:07,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:05:07,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:05:07,827 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:05:07,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:05:07,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:05:07,828 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:05:07,828 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:05:07,828 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:05:07,828 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:05:07,829 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:05:07,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:05:07,829 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:05:07,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:05:07,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:05:07,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:05:07,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:05:07,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:05:07,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:05:07,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:05:07,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:05:07,831 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:05:07,831 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:05:07,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:05:07,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:05:07,832 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:05:07,832 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:05:07,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:05:07,833 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:05:07,833 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:05:08,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:05:08,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:05:08,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:05:08,107 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:05:08,107 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:05:08,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-42.i [2023-12-16 11:05:09,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:05:09,530 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:05:09,531 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-42.i [2023-12-16 11:05:09,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7238ed8/3714d2ade6b945c2a807a9b8c147cf81/FLAGf1be6d29e [2023-12-16 11:05:09,551 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7238ed8/3714d2ade6b945c2a807a9b8c147cf81 [2023-12-16 11:05:09,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:05:09,554 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:05:09,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:05:09,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:05:09,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:05:09,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:09,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f3cf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09, skipping insertion in model container [2023-12-16 11:05:09,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:09,609 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:05:09,734 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_fillercodesize_ps-cn-250_file-42.i[916,929] [2023-12-16 11:05:09,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:05:09,891 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:05:09,901 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_fillercodesize_ps-cn-250_file-42.i[916,929] [2023-12-16 11:05:09,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:05:09,992 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:05:09,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09 WrapperNode [2023-12-16 11:05:09,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:05:09,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:05:09,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:05:09,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:05:09,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,058 INFO L138 Inliner]: procedures = 27, calls = 92, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 461 [2023-12-16 11:05:10,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:05:10,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:05:10,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:05:10,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:05:10,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,079 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,104 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 11:05:10,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:05:10,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:05:10,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:05:10,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:05:10,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (1/1) ... [2023-12-16 11:05:10,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:05:10,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:05:10,233 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 11:05:10,250 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 11:05:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:05:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:05:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:05:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:05:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:05:10,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:05:10,397 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:05:10,398 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:05:42,795 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:05:42,854 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:05:42,854 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:05:42,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:05:42 BoogieIcfgContainer [2023-12-16 11:05:42,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:05:42,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:05:42,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:05:42,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:05:42,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:05:09" (1/3) ... [2023-12-16 11:05:42,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fadf9d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:05:42, skipping insertion in model container [2023-12-16 11:05:42,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:05:09" (2/3) ... [2023-12-16 11:05:42,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fadf9d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:05:42, skipping insertion in model container [2023-12-16 11:05:42,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:05:42" (3/3) ... [2023-12-16 11:05:42,868 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-42.i [2023-12-16 11:05:42,884 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:05:42,885 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:05:42,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:05:42,931 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;@57a87ffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:05:42,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:05:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 117 states have (on average 1.5128205128205128) internal successors, (177), 118 states have internal predecessors, (177), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-16 11:05:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-12-16 11:05:42,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:42,963 INFO L195 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:42,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:42,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1037911021, now seen corresponding path program 1 times [2023-12-16 11:05:42,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:42,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404740270] [2023-12-16 11:05:42,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:42,986 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 11:05:42,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:42,987 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 11:05:42,990 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 11:05:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:44,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:05:44,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:44,573 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 5984 proven. 0 refuted. 0 times theorem prover too weak. 6340 trivial. 0 not checked. [2023-12-16 11:05:44,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:05:44,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:05:44,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404740270] [2023-12-16 11:05:44,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404740270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:05:44,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:05:44,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:05:44,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152378570] [2023-12-16 11:05:44,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:05:44,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:05:44,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:05:44,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:05:44,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:05:44,606 INFO L87 Difference]: Start difference. First operand has 199 states, 117 states have (on average 1.5128205128205128) internal successors, (177), 118 states have internal predecessors, (177), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2023-12-16 11:05:44,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:05:44,750 INFO L93 Difference]: Finished difference Result 395 states and 747 transitions. [2023-12-16 11:05:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:05:44,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 486 [2023-12-16 11:05:44,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:05:44,777 INFO L225 Difference]: With dead ends: 395 [2023-12-16 11:05:44,777 INFO L226 Difference]: Without dead ends: 197 [2023-12-16 11:05:44,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 485 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 11:05:44,790 INFO L413 NwaCegarLoop]: 327 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, 327 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 11:05:44,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 327 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 11:05:44,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-16 11:05:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-12-16 11:05:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 116 states have (on average 1.4827586206896552) internal successors, (172), 116 states have internal predecessors, (172), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-16 11:05:44,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 330 transitions. [2023-12-16 11:05:44,854 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 330 transitions. Word has length 486 [2023-12-16 11:05:44,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:05:44,854 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 330 transitions. [2023-12-16 11:05:44,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2023-12-16 11:05:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 330 transitions. [2023-12-16 11:05:44,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-12-16 11:05:44,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:44,872 INFO L195 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:44,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 11:05:45,097 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 11:05:45,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:45,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:45,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2123219353, now seen corresponding path program 1 times [2023-12-16 11:05:45,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:45,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40062834] [2023-12-16 11:05:45,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:45,100 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 11:05:45,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:45,103 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 11:05:45,120 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 11:05:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:46,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:05:46,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 6240 proven. 117 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2023-12-16 11:05:49,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:05:49,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:05:49,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40062834] [2023-12-16 11:05:49,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40062834] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:05:49,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [459148735] [2023-12-16 11:05:49,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:49,583 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:05:49,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:05:49,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:05:49,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 11:05:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:50,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:05:50,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2023-12-16 11:05:50,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:05:50,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [459148735] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:05:50,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:05:50,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 11:05:50,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448763204] [2023-12-16 11:05:50,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:05:50,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:05:50,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:05:50,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:05:50,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:05:50,913 INFO L87 Difference]: Start difference. First operand 197 states and 330 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2023-12-16 11:05:51,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:05:51,621 INFO L93 Difference]: Finished difference Result 587 states and 984 transitions. [2023-12-16 11:05:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:05:51,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 486 [2023-12-16 11:05:51,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:05:51,627 INFO L225 Difference]: With dead ends: 587 [2023-12-16 11:05:51,627 INFO L226 Difference]: Without dead ends: 391 [2023-12-16 11:05:51,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:05:51,629 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 312 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 11:05:51,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 680 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 11:05:51,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-12-16 11:05:51,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 389. [2023-12-16 11:05:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 228 states have (on average 1.469298245614035) internal successors, (335), 228 states have internal predecessors, (335), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2023-12-16 11:05:51,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 651 transitions. [2023-12-16 11:05:51,718 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 651 transitions. Word has length 486 [2023-12-16 11:05:51,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:05:51,721 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 651 transitions. [2023-12-16 11:05:51,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2023-12-16 11:05:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 651 transitions. [2023-12-16 11:05:51,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-12-16 11:05:51,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:51,735 INFO L195 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:51,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-16 11:05:51,979 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 11:05:52,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 11:05:52,145 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:52,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:52,145 INFO L85 PathProgramCache]: Analyzing trace with hash 434275611, now seen corresponding path program 1 times [2023-12-16 11:05:52,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285024146] [2023-12-16 11:05:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:52,147 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 11:05:52,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:52,148 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 11:05:52,154 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 11:05:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:53,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:05:53,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 6240 proven. 117 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2023-12-16 11:05:56,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:05:56,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:05:56,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285024146] [2023-12-16 11:05:56,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285024146] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:05:56,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [340024392] [2023-12-16 11:05:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:56,311 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:05:56,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:05:56,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:05:56,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 11:05:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:57,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:05:57,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2023-12-16 11:05:57,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:05:57,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [340024392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:05:57,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:05:57,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 11:05:57,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707833374] [2023-12-16 11:05:57,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:05:57,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:05:57,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:05:57,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:05:57,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:05:57,663 INFO L87 Difference]: Start difference. First operand 389 states and 651 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2023-12-16 11:05:58,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:05:58,342 INFO L93 Difference]: Finished difference Result 802 states and 1348 transitions. [2023-12-16 11:05:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:05:58,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 486 [2023-12-16 11:05:58,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:05:58,348 INFO L225 Difference]: With dead ends: 802 [2023-12-16 11:05:58,348 INFO L226 Difference]: Without dead ends: 414 [2023-12-16 11:05:58,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:05:58,350 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 312 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 11:05:58,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 952 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 11:05:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2023-12-16 11:05:58,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 412. [2023-12-16 11:05:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 251 states have (on average 1.49800796812749) internal successors, (376), 251 states have internal predecessors, (376), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2023-12-16 11:05:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 692 transitions. [2023-12-16 11:05:58,405 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 692 transitions. Word has length 486 [2023-12-16 11:05:58,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:05:58,411 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 692 transitions. [2023-12-16 11:05:58,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2023-12-16 11:05:58,411 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 692 transitions. [2023-12-16 11:05:58,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-12-16 11:05:58,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:58,417 INFO L195 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:05:58,472 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 11:05:58,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-16 11:05:58,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:05:58,833 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:58,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:58,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1820479005, now seen corresponding path program 1 times [2023-12-16 11:05:58,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:58,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916564285] [2023-12-16 11:05:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:58,835 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 11:05:58,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:58,836 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:05:58,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 11:06:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:06:00,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:06:00,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:06:02,776 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 6240 proven. 117 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2023-12-16 11:06:02,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:06:02,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:06:02,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916564285] [2023-12-16 11:06:02,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916564285] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:06:02,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2085357175] [2023-12-16 11:06:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:06:02,980 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:06:02,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:06:02,985 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:06:03,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-16 11:06:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:06:04,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:06:04,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:06:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2023-12-16 11:06:04,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:06:04,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2085357175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:06:04,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:06:04,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 11:06:04,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686913043] [2023-12-16 11:06:04,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:06:04,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:06:04,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:06:04,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:06:04,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:06:04,445 INFO L87 Difference]: Start difference. First operand 412 states and 692 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2023-12-16 11:06:04,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:06:04,688 INFO L93 Difference]: Finished difference Result 964 states and 1614 transitions. [2023-12-16 11:06:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:06:04,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 486 [2023-12-16 11:06:04,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:06:04,697 INFO L225 Difference]: With dead ends: 964 [2023-12-16 11:06:04,697 INFO L226 Difference]: Without dead ends: 553 [2023-12-16 11:06:04,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:06:04,700 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 131 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:06:04,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 668 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 11:06:04,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-12-16 11:06:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 549. [2023-12-16 11:06:04,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 362 states have (on average 1.5248618784530388) internal successors, (552), 364 states have internal predecessors, (552), 182 states have call successors, (182), 4 states have call predecessors, (182), 4 states have return successors, (182), 180 states have call predecessors, (182), 182 states have call successors, (182) [2023-12-16 11:06:04,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 916 transitions. [2023-12-16 11:06:04,752 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 916 transitions. Word has length 486 [2023-12-16 11:06:04,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:06:04,753 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 916 transitions. [2023-12-16 11:06:04,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2023-12-16 11:06:04,754 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 916 transitions. [2023-12-16 11:06:04,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-12-16 11:06:04,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:06:04,758 INFO L195 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:04,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 11:06:04,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-16 11:06:05,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:06:05,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:06:05,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:06:05,162 INFO L85 PathProgramCache]: Analyzing trace with hash 232131103, now seen corresponding path program 1 times [2023-12-16 11:06:05,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:06:05,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354259584] [2023-12-16 11:06:05,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:06:05,163 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 11:06:05,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:06:05,168 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:06:05,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 11:06:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:06:06,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:06:06,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:06:08,846 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 6240 proven. 117 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2023-12-16 11:06:08,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:06:09,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:06:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354259584] [2023-12-16 11:06:09,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354259584] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:06:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1917525870] [2023-12-16 11:06:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:06:09,039 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:06:09,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:06:09,040 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:06:09,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-16 11:06:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:06:10,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 11:06:10,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:06:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2023-12-16 11:06:14,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:06:14,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1917525870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:06:14,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:06:14,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 11:06:14,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438771973] [2023-12-16 11:06:14,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:06:14,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 11:06:14,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:06:14,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 11:06:14,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:06:14,672 INFO L87 Difference]: Start difference. First operand 549 states and 916 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2023-12-16 11:06:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:06:15,456 INFO L93 Difference]: Finished difference Result 1455 states and 2436 transitions. [2023-12-16 11:06:15,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 11:06:15,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 486 [2023-12-16 11:06:15,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:06:15,473 INFO L225 Difference]: With dead ends: 1455 [2023-12-16 11:06:15,473 INFO L226 Difference]: Without dead ends: 907 [2023-12-16 11:06:15,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1016 GetRequests, 1009 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 11:06:15,476 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 253 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:06:15,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 975 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 11:06:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2023-12-16 11:06:15,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 833. [2023-12-16 11:06:15,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 565 states have (on average 1.5539823008849558) internal successors, (878), 567 states have internal predecessors, (878), 261 states have call successors, (261), 6 states have call predecessors, (261), 6 states have return successors, (261), 259 states have call predecessors, (261), 261 states have call successors, (261) [2023-12-16 11:06:15,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1400 transitions. [2023-12-16 11:06:15,562 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1400 transitions. Word has length 486 [2023-12-16 11:06:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:06:15,563 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1400 transitions. [2023-12-16 11:06:15,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2023-12-16 11:06:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1400 transitions. [2023-12-16 11:06:15,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2023-12-16 11:06:15,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:06:15,567 INFO L195 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:15,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 11:06:15,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-16 11:06:15,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:06:15,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:06:15,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:06:15,989 INFO L85 PathProgramCache]: Analyzing trace with hash -575306811, now seen corresponding path program 1 times [2023-12-16 11:06:15,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:06:15,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911025700] [2023-12-16 11:06:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:06:15,991 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 11:06:15,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:06:15,992 INFO L229 MonitoredProcess]: Starting monitored process 11 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 11:06:16,021 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 (11)] Waiting until timeout for monitored process [2023-12-16 11:06:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:06:17,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:06:17,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:06:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 6240 proven. 117 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2023-12-16 11:06:19,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:06:19,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:06:19,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911025700] [2023-12-16 11:06:19,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911025700] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:06:19,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [382711777] [2023-12-16 11:06:19,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:06:19,656 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:06:19,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:06:19,657 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:06:19,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 11:06:20,059 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:06:20,079 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 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:06:20,085 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 11:06:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:06:20,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 11:06:20,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:06:20,739 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:06:20,792 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 (11)] Forceful destruction successful, exit code 0 [2023-12-16 11:06:20,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-16 11:06:21,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:06:21,165 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 488 with TraceHistMax 79,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∨-2-2-1 context. [2023-12-16 11:06:21,168 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 [2023-12-16 11:06:21,171 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 11:06:21,174 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:06:21,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:06:21 BoogieIcfgContainer [2023-12-16 11:06:21,176 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:06:21,176 INFO L158 Benchmark]: Toolchain (without parser) took 71622.22ms. Allocated memory is still 262.1MB. Free memory was 208.5MB in the beginning and 112.2MB in the end (delta: 96.2MB). Peak memory consumption was 97.6MB. Max. memory is 8.0GB. [2023-12-16 11:06:21,177 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 194.0MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:06:21,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.78ms. Allocated memory is still 262.1MB. Free memory was 208.5MB in the beginning and 184.3MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 11:06:21,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.16ms. Allocated memory is still 262.1MB. Free memory was 184.3MB in the beginning and 179.6MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 11:06:21,177 INFO L158 Benchmark]: Boogie Preprocessor took 122.20ms. Allocated memory is still 262.1MB. Free memory was 179.6MB in the beginning and 172.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 11:06:21,178 INFO L158 Benchmark]: RCFGBuilder took 32672.65ms. Allocated memory is still 262.1MB. Free memory was 172.8MB in the beginning and 197.9MB in the end (delta: -25.1MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. [2023-12-16 11:06:21,178 INFO L158 Benchmark]: TraceAbstraction took 38319.12ms. Allocated memory is still 262.1MB. Free memory was 197.4MB in the beginning and 112.2MB in the end (delta: 85.2MB). Peak memory consumption was 85.5MB. Max. memory is 8.0GB. [2023-12-16 11:06:21,179 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 194.0MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 437.78ms. Allocated memory is still 262.1MB. Free memory was 208.5MB in the beginning and 184.3MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.16ms. Allocated memory is still 262.1MB. Free memory was 184.3MB in the beginning and 179.6MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 122.20ms. Allocated memory is still 262.1MB. Free memory was 179.6MB in the beginning and 172.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 32672.65ms. Allocated memory is still 262.1MB. Free memory was 172.8MB in the beginning and 197.9MB in the end (delta: -25.1MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. * TraceAbstraction took 38319.12ms. Allocated memory is still 262.1MB. Free memory was 197.4MB in the beginning and 112.2MB in the end (delta: 85.2MB). Peak memory consumption was 85.5MB. 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 488 with TraceHistMax 79,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∨-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.3s, OverallIterations: 6, TraceHistogramMax: 79, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1008 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1008 mSDsluCounter, 3602 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1593 mSDsCounter, 175 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 175 mSolverCounterUnsat, 2009 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4546 GetRequests, 4524 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=833occurred in iteration=5, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 82 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 10.2s SatisfiabilityAnalysisTime, 16.7s InterpolantComputationTime, 4374 NumberOfCodeBlocks, 4374 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 4365 ConstructedInterpolants, 0 QuantifiedInterpolants, 8133 SizeOfPredicates, 13 NumberOfNonLiveVariables, 6992 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 110448/110916 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