/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-10_file-56.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 01:27:37,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 01:27:37,288 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 01:27:37,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 01:27:37,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 01:27:37,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 01:27:37,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 01:27:37,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 01:27:37,322 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 01:27:37,326 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 01:27:37,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 01:27:37,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 01:27:37,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 01:27:37,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 01:27:37,327 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 01:27:37,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 01:27:37,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 01:27:37,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 01:27:37,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 01:27:37,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 01:27:37,329 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 01:27:37,329 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 01:27:37,329 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 01:27:37,330 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 01:27:37,330 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 01:27:37,330 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 01:27:37,330 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 01:27:37,331 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 01:27:37,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 01:27:37,331 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 01:27:37,332 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 01:27:37,332 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 01:27:37,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 01:27:37,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 01:27:37,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 01:27:37,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 01:27:37,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 01:27:37,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 01:27:37,333 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 01:27:37,333 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 01:27:37,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 01:27:37,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 01:27:37,334 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 01:27:37,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 01:27:37,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 01:27:37,334 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 01:27:37,335 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 01:27:37,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 01:27:37,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 01:27:37,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 01:27:37,583 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 01:27:37,584 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 01:27:37,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2023-12-23 01:27:38,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 01:27:38,987 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 01:27:38,988 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2023-12-23 01:27:38,995 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/affaff428/e3cc1357ed3148b581c935fe309a4f4b/FLAG207c81f7c [2023-12-23 01:27:39,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/affaff428/e3cc1357ed3148b581c935fe309a4f4b [2023-12-23 01:27:39,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 01:27:39,016 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 01:27:39,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 01:27:39,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 01:27:39,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 01:27:39,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2bfd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39, skipping insertion in model container [2023-12-23 01:27:39,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,052 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 01:27:39,212 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-10_file-56.i[915,928] [2023-12-23 01:27:39,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 01:27:39,298 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 01:27:39,307 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-10_file-56.i[915,928] [2023-12-23 01:27:39,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 01:27:39,370 INFO L206 MainTranslator]: Completed translation [2023-12-23 01:27:39,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39 WrapperNode [2023-12-23 01:27:39,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 01:27:39,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 01:27:39,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 01:27:39,372 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 01:27:39,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,408 INFO L138 Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 178 [2023-12-23 01:27:39,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 01:27:39,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 01:27:39,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 01:27:39,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 01:27:39,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,438 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 01:27:39,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 01:27:39,464 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 01:27:39,464 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 01:27:39,464 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 01:27:39,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (1/1) ... [2023-12-23 01:27:39,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 01:27:39,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 01:27:39,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 01:27:39,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 01:27:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 01:27:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 01:27:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 01:27:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 01:27:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 01:27:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 01:27:39,611 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 01:27:39,612 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 01:27:39,942 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 01:27:40,002 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 01:27:40,002 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 01:27:40,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:27:40 BoogieIcfgContainer [2023-12-23 01:27:40,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 01:27:40,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 01:27:40,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 01:27:40,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 01:27:40,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:27:39" (1/3) ... [2023-12-23 01:27:40,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14632458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:27:40, skipping insertion in model container [2023-12-23 01:27:40,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:27:39" (2/3) ... [2023-12-23 01:27:40,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14632458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:27:40, skipping insertion in model container [2023-12-23 01:27:40,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:27:40" (3/3) ... [2023-12-23 01:27:40,019 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2023-12-23 01:27:40,030 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 01:27:40,030 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 01:27:40,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 01:27:40,081 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;@24b53437, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 01:27:40,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 01:27:40,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-23 01:27:40,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-23 01:27:40,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:27:40,103 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:27:40,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:27:40,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:27:40,108 INFO L85 PathProgramCache]: Analyzing trace with hash 165761846, now seen corresponding path program 1 times [2023-12-23 01:27:40,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:27:40,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664532373] [2023-12-23 01:27:40,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:27:40,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:27:40,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:27:40,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 01:27:40,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 01:27:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:27:40,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 01:27:40,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:27:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1074 proven. 0 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2023-12-23 01:27:40,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 01:27:40,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:27:40,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664532373] [2023-12-23 01:27:40,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664532373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 01:27:40,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 01:27:40,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 01:27:40,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629147069] [2023-12-23 01:27:40,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 01:27:40,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 01:27:40,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:27:40,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 01:27:40,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 01:27:40,535 INFO L87 Difference]: Start difference. First operand has 78 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-23 01:27:40,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:27:40,616 INFO L93 Difference]: Finished difference Result 153 states and 278 transitions. [2023-12-23 01:27:40,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 01:27:40,622 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 205 [2023-12-23 01:27:40,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:27:40,628 INFO L225 Difference]: With dead ends: 153 [2023-12-23 01:27:40,628 INFO L226 Difference]: Without dead ends: 76 [2023-12-23 01:27:40,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 01:27:40,634 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-23 01:27:40,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-23 01:27:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-23 01:27:40,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-23 01:27:40,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 40 states have (on average 1.25) internal successors, (50), 40 states have internal predecessors, (50), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-23 01:27:40,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 118 transitions. [2023-12-23 01:27:40,675 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 118 transitions. Word has length 205 [2023-12-23 01:27:40,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:27:40,675 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 118 transitions. [2023-12-23 01:27:40,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-23 01:27:40,676 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 118 transitions. [2023-12-23 01:27:40,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-23 01:27:40,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:27:40,680 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:27:40,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 01:27:40,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:27:40,881 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:27:40,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:27:40,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1008949750, now seen corresponding path program 1 times [2023-12-23 01:27:40,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:27:40,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654014483] [2023-12-23 01:27:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:27:40,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:27:40,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:27:40,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 01:27:40,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 01:27:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:27:41,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 01:27:41,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:27:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 646 proven. 165 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2023-12-23 01:27:41,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 01:27:42,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 27 proven. 168 refuted. 0 times theorem prover too weak. 2049 trivial. 0 not checked. [2023-12-23 01:27:42,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:27:42,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654014483] [2023-12-23 01:27:42,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654014483] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 01:27:42,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 01:27:42,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-23 01:27:42,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781736534] [2023-12-23 01:27:42,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 01:27:42,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-23 01:27:42,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:27:42,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-23 01:27:42,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-23 01:27:42,209 INFO L87 Difference]: Start difference. First operand 76 states and 118 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (63), 3 states have call predecessors, (63), 7 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2023-12-23 01:27:42,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:27:42,658 INFO L93 Difference]: Finished difference Result 161 states and 243 transitions. [2023-12-23 01:27:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-23 01:27:42,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (63), 3 states have call predecessors, (63), 7 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 205 [2023-12-23 01:27:42,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:27:42,666 INFO L225 Difference]: With dead ends: 161 [2023-12-23 01:27:42,666 INFO L226 Difference]: Without dead ends: 86 [2023-12-23 01:27:42,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552 [2023-12-23 01:27:42,668 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 114 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 01:27:42,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 155 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 01:27:42,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-23 01:27:42,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-12-23 01:27:42,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-23 01:27:42,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 122 transitions. [2023-12-23 01:27:42,686 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 122 transitions. Word has length 205 [2023-12-23 01:27:42,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:27:42,687 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 122 transitions. [2023-12-23 01:27:42,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (63), 3 states have call predecessors, (63), 7 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2023-12-23 01:27:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 122 transitions. [2023-12-23 01:27:42,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-23 01:27:42,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:27:42,691 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:27:42,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 01:27:42,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:27:42,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:27:42,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:27:42,899 INFO L85 PathProgramCache]: Analyzing trace with hash 615922740, now seen corresponding path program 1 times [2023-12-23 01:27:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:27:42,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333725327] [2023-12-23 01:27:42,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:27:42,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:27:42,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:27:42,903 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 01:27:42,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 01:27:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:27:43,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 01:27:43,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:27:43,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-23 01:27:43,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 01:27:43,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:27:43,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333725327] [2023-12-23 01:27:43,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333725327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 01:27:43,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 01:27:43,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 01:27:43,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727904864] [2023-12-23 01:27:43,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 01:27:43,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 01:27:43,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:27:43,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 01:27:43,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-23 01:27:43,385 INFO L87 Difference]: Start difference. First operand 84 states and 122 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 01:27:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:27:43,546 INFO L93 Difference]: Finished difference Result 167 states and 243 transitions. [2023-12-23 01:27:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 01:27:43,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 205 [2023-12-23 01:27:43,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:27:43,549 INFO L225 Difference]: With dead ends: 167 [2023-12-23 01:27:43,549 INFO L226 Difference]: Without dead ends: 84 [2023-12-23 01:27:43,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-23 01:27:43,551 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 19 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 01:27:43,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 139 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 01:27:43,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-23 01:27:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-23 01:27:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 46 states have internal predecessors, (53), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-23 01:27:43,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 121 transitions. [2023-12-23 01:27:43,567 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 121 transitions. Word has length 205 [2023-12-23 01:27:43,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:27:43,567 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 121 transitions. [2023-12-23 01:27:43,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 01:27:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2023-12-23 01:27:43,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-23 01:27:43,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:27:43,571 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:27:43,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-23 01:27:43,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:27:43,778 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:27:43,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:27:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash 614075698, now seen corresponding path program 1 times [2023-12-23 01:27:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:27:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845542021] [2023-12-23 01:27:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:27:43,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:27:43,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:27:43,781 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 01:27:43,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 01:27:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:27:43,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-23 01:27:43,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 01:35:23,415 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 01:35:23,430 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 01:35:24,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-23 01:35:24,492 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown