/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-500_file-16.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:21:07,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:21:07,291 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 11:21:07,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:21:07,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:21:07,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:21:07,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:21:07,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:21:07,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:21:07,324 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:21:07,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:21:07,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:21:07,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:21:07,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:21:07,326 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:21:07,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:21:07,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:21:07,327 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:21:07,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:21:07,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:21:07,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:21:07,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:21:07,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:21:07,328 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:21:07,328 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:21:07,329 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:21:07,329 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:21:07,329 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:21:07,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:21:07,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:21:07,330 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:21:07,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:21:07,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:21:07,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:21:07,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:21:07,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:21:07,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:21:07,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:21:07,331 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:21:07,331 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:21:07,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:21:07,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:21:07,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:21:07,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:21:07,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:21:07,332 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:21:07,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:21:07,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:21:07,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:21:07,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:21:07,571 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:21:07,573 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:21:07,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-16.i [2023-12-16 11:21:08,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:21:08,884 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:21:08,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-16.i [2023-12-16 11:21:08,906 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5484f2e84/d88ced64b5884826aa2862ecd4e51184/FLAGcaa20b868 [2023-12-16 11:21:08,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5484f2e84/d88ced64b5884826aa2862ecd4e51184 [2023-12-16 11:21:08,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:21:08,919 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:21:08,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:21:08,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:21:08,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:21:08,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:21:08" (1/1) ... [2023-12-16 11:21:08,924 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4f2a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:08, skipping insertion in model container [2023-12-16 11:21:08,924 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:21:08" (1/1) ... [2023-12-16 11:21:08,981 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:21:09,115 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-500_file-16.i[916,929] [2023-12-16 11:21:09,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:21:09,250 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:21:09,275 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-500_file-16.i[916,929] [2023-12-16 11:21:09,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:21:09,370 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:21:09,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09 WrapperNode [2023-12-16 11:21:09,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:21:09,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:21:09,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:21:09,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:21:09,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,443 INFO L138 Inliner]: procedures = 27, calls = 116, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 678 [2023-12-16 11:21:09,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:21:09,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:21:09,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:21:09,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:21:09,459 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,495 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 11:21:09,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:21:09,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:21:09,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:21:09,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:21:09,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (1/1) ... [2023-12-16 11:21:09,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:21:09,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:21:09,670 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 11:21:09,714 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 11:21:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:21:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:21:09,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:21:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:21:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:21:09,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:21:09,837 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:21:09,838 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:21:45,127 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:21:45,193 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:21:45,193 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:21:45,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:21:45 BoogieIcfgContainer [2023-12-16 11:21:45,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:21:45,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:21:45,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:21:45,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:21:45,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:21:08" (1/3) ... [2023-12-16 11:21:45,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d01c93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:21:45, skipping insertion in model container [2023-12-16 11:21:45,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:21:09" (2/3) ... [2023-12-16 11:21:45,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d01c93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:21:45, skipping insertion in model container [2023-12-16 11:21:45,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:21:45" (3/3) ... [2023-12-16 11:21:45,201 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-16.i [2023-12-16 11:21:45,214 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:21:45,214 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:21:45,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:21:45,262 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;@21ff9202, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:21:45,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:21:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 291 states, 185 states have (on average 1.5945945945945945) internal successors, (295), 186 states have internal predecessors, (295), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-16 11:21:45,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2023-12-16 11:21:45,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:21:45,355 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:21:45,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:21:45,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:21:45,360 INFO L85 PathProgramCache]: Analyzing trace with hash 304369496, now seen corresponding path program 1 times [2023-12-16 11:21:45,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:21:45,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061587028] [2023-12-16 11:21:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:21:45,374 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 11:21:45,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:21:45,377 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 11:21:45,378 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 11:21:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:21:46,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 11:21:46,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:21:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 10814 proven. 279 refuted. 0 times theorem prover too weak. 9919 trivial. 0 not checked. [2023-12-16 11:21:55,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:21:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 327 proven. 282 refuted. 0 times theorem prover too weak. 20403 trivial. 0 not checked. [2023-12-16 11:21:58,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:21:58,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061587028] [2023-12-16 11:21:58,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061587028] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:21:58,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:21:58,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-16 11:21:58,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958041983] [2023-12-16 11:21:58,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:21:58,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 11:21:58,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:21:58,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 11:21:58,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-12-16 11:21:58,636 INFO L87 Difference]: Start difference. First operand has 291 states, 185 states have (on average 1.5945945945945945) internal successors, (295), 186 states have internal predecessors, (295), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 14 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 3 states have call successors, (151), 3 states have call predecessors, (151), 7 states have return successors, (152), 3 states have call predecessors, (152), 3 states have call successors, (152) [2023-12-16 11:22:08,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:22:17,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:22:17,597 INFO L93 Difference]: Finished difference Result 1275 states and 2541 transitions. [2023-12-16 11:22:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-16 11:22:17,600 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 3 states have call successors, (151), 3 states have call predecessors, (151), 7 states have return successors, (152), 3 states have call predecessors, (152), 3 states have call successors, (152) Word has length 651 [2023-12-16 11:22:17,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:22:17,623 INFO L225 Difference]: With dead ends: 1275 [2023-12-16 11:22:17,624 INFO L226 Difference]: Without dead ends: 985 [2023-12-16 11:22:17,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1291 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=521, Invalid=1371, Unknown=0, NotChecked=0, Total=1892 [2023-12-16 11:22:17,636 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 2120 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 1330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1330 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2023-12-16 11:22:17,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 1859 Invalid, 3028 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1330 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2023-12-16 11:22:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2023-12-16 11:22:17,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 969. [2023-12-16 11:22:17,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 596 states have (on average 1.4781879194630871) internal successors, (881), 597 states have internal predecessors, (881), 363 states have call successors, (363), 9 states have call predecessors, (363), 9 states have return successors, (363), 362 states have call predecessors, (363), 363 states have call successors, (363) [2023-12-16 11:22:17,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1607 transitions. [2023-12-16 11:22:17,862 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1607 transitions. Word has length 651 [2023-12-16 11:22:17,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:22:17,866 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1607 transitions. [2023-12-16 11:22:17,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 3 states have call successors, (151), 3 states have call predecessors, (151), 7 states have return successors, (152), 3 states have call predecessors, (152), 3 states have call successors, (152) [2023-12-16 11:22:17,867 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1607 transitions. [2023-12-16 11:22:17,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2023-12-16 11:22:17,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:22:17,882 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:17,920 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 11:22:18,109 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 11:22:18,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:22:18,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:22:18,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1777907604, now seen corresponding path program 1 times [2023-12-16 11:22:18,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:22:18,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884814574] [2023-12-16 11:22:18,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:22:18,112 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 11:22:18,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:22:18,113 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 11:22:18,129 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 11:22:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:22:19,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:22:19,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:22:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-16 11:22:19,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:22:19,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:22:19,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884814574] [2023-12-16 11:22:19,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884814574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:22:19,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:22:19,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:22:19,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420874405] [2023-12-16 11:22:19,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:22:19,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:22:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:22:19,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:22:19,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:22:19,764 INFO L87 Difference]: Start difference. First operand 969 states and 1607 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-16 11:22:21,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:22:21,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:22:21,504 INFO L93 Difference]: Finished difference Result 2432 states and 4009 transitions. [2023-12-16 11:22:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:22:21,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 654 [2023-12-16 11:22:21,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:22:21,518 INFO L225 Difference]: With dead ends: 2432 [2023-12-16 11:22:21,518 INFO L226 Difference]: Without dead ends: 1552 [2023-12-16 11:22:21,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 652 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 11:22:21,522 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 306 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:22:21,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1014 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 11:22:21,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2023-12-16 11:22:21,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1547. [2023-12-16 11:22:21,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 967 states have (on average 1.4488107549120992) internal successors, (1401), 971 states have internal predecessors, (1401), 561 states have call successors, (561), 18 states have call predecessors, (561), 18 states have return successors, (561), 557 states have call predecessors, (561), 561 states have call successors, (561) [2023-12-16 11:22:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2523 transitions. [2023-12-16 11:22:21,673 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2523 transitions. Word has length 654 [2023-12-16 11:22:21,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:22:21,674 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2523 transitions. [2023-12-16 11:22:21,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-16 11:22:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2523 transitions. [2023-12-16 11:22:21,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2023-12-16 11:22:21,688 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:22:21,688 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:21,724 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 (3)] Ended with exit code 0 [2023-12-16 11:22:21,908 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 11:22:21,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:22:21,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:22:21,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1737232854, now seen corresponding path program 1 times [2023-12-16 11:22:21,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:22:21,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409112922] [2023-12-16 11:22:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:22:21,910 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 11:22:21,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:22:21,912 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 11:22:21,928 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 11:22:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:22:23,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:22:23,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:22:23,581 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:22:23,584 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 11:22:24,609 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:22:24,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 11:22:24,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 11:22:24,810 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 11:22:24,810 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 655 with TraceHistMax 103,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 11:22:24,814 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 11:22:24,824 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:22:24,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:22:24 BoogieIcfgContainer [2023-12-16 11:22:24,826 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:22:24,827 INFO L158 Benchmark]: Toolchain (without parser) took 75907.80ms. Allocated memory was 188.7MB in the beginning and 243.3MB in the end (delta: 54.5MB). Free memory was 140.5MB in the beginning and 154.5MB in the end (delta: -14.0MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2023-12-16 11:22:24,827 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:22:24,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.80ms. Allocated memory is still 188.7MB. Free memory was 140.5MB in the beginning and 109.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 11:22:24,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.97ms. Allocated memory is still 188.7MB. Free memory was 109.1MB in the beginning and 103.1MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 11:22:24,828 INFO L158 Benchmark]: Boogie Preprocessor took 166.24ms. Allocated memory is still 188.7MB. Free memory was 103.1MB in the beginning and 158.8MB in the end (delta: -55.6MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2023-12-16 11:22:24,828 INFO L158 Benchmark]: RCFGBuilder took 35583.47ms. Allocated memory is still 188.7MB. Free memory was 158.8MB in the beginning and 87.0MB in the end (delta: 71.8MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2023-12-16 11:22:24,828 INFO L158 Benchmark]: TraceAbstraction took 39630.55ms. Allocated memory was 188.7MB in the beginning and 243.3MB in the end (delta: 54.5MB). Free memory was 86.4MB in the beginning and 154.5MB in the end (delta: -68.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:22:24,830 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 188.7MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 450.80ms. Allocated memory is still 188.7MB. Free memory was 140.5MB in the beginning and 109.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.97ms. Allocated memory is still 188.7MB. Free memory was 109.1MB in the beginning and 103.1MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 166.24ms. Allocated memory is still 188.7MB. Free memory was 103.1MB in the beginning and 158.8MB in the end (delta: -55.6MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * RCFGBuilder took 35583.47ms. Allocated memory is still 188.7MB. Free memory was 158.8MB in the beginning and 87.0MB in the end (delta: 71.8MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. * TraceAbstraction took 39630.55ms. Allocated memory was 188.7MB in the beginning and 243.3MB in the end (delta: 54.5MB). Free memory was 86.4MB in the beginning and 154.5MB in the end (delta: -68.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 655 with TraceHistMax 103,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 291 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.6s, OverallIterations: 3, TraceHistogramMax: 103, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 20.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2482 SdHoareTripleChecker+Valid, 17.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2426 mSDsluCounter, 2873 SdHoareTripleChecker+Invalid, 16.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1756 mSDsCounter, 1340 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1728 IncrementalHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1340 mSolverCounterUnsat, 1117 mSDtfsCounter, 1728 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1987 GetRequests, 1943 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1547occurred in iteration=2, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 2 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 1305 NumberOfCodeBlocks, 1305 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1953 ConstructedInterpolants, 0 QuantifiedInterpolants, 4947 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2120 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 62475/63036 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