/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_variablewrapping_normal_file-11.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 11:27:11,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 11:27:11,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 11:27:11,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 11:27:11,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 11:27:11,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 11:27:11,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 11:27:11,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 11:27:11,982 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 11:27:11,985 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 11:27:11,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 11:27:11,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 11:27:11,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 11:27:11,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 11:27:11,987 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 11:27:11,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 11:27:11,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 11:27:11,987 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 11:27:11,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 11:27:11,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 11:27:11,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 11:27:11,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 11:27:11,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 11:27:11,988 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 11:27:11,988 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 11:27:11,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 11:27:11,989 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 11:27:11,989 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 11:27:11,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 11:27:11,989 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 11:27:11,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 11:27:11,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 11:27:11,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 11:27:11,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 11:27:11,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 11:27:11,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 11:27:11,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 11:27:11,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 11:27:11,991 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 11:27:11,991 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 11:27:11,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 11:27:11,991 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 11:27:11,991 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 11:27:11,991 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 11:27:11,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 11:27:11,991 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 11:27:11,992 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 11:27:12,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 11:27:12,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 11:27:12,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 11:27:12,201 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 11:27:12,201 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 11:27:12,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-11.i [2023-12-24 11:27:13,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 11:27:13,328 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 11:27:13,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-11.i [2023-12-24 11:27:13,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1c2ad5a/9786e4a12a704caaae05a558abc8855d/FLAG3106eb4ae [2023-12-24 11:27:13,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1c2ad5a/9786e4a12a704caaae05a558abc8855d [2023-12-24 11:27:13,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 11:27:13,350 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 11:27:13,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 11:27:13,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 11:27:13,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 11:27:13,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd93e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13, skipping insertion in model container [2023-12-24 11:27:13,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,374 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 11:27:13,469 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_variablewrapping_normal_file-11.i[913,926] [2023-12-24 11:27:13,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 11:27:13,516 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 11:27:13,529 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_variablewrapping_normal_file-11.i[913,926] [2023-12-24 11:27:13,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 11:27:13,562 INFO L206 MainTranslator]: Completed translation [2023-12-24 11:27:13,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13 WrapperNode [2023-12-24 11:27:13,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 11:27:13,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 11:27:13,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 11:27:13,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 11:27:13,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,594 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-12-24 11:27:13,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 11:27:13,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 11:27:13,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 11:27:13,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 11:27:13,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,615 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]. [2023-12-24 11:27:13,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 11:27:13,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 11:27:13,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 11:27:13,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 11:27:13,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (1/1) ... [2023-12-24 11:27:13,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 11:27:13,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 11:27:13,672 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) [2023-12-24 11:27:13,676 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 [2023-12-24 11:27:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 11:27:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 11:27:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 11:27:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 11:27:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 11:27:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 11:27:13,744 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 11:27:13,746 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 11:27:26,295 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 11:27:26,325 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 11:27:26,325 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 11:27:26,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:27:26 BoogieIcfgContainer [2023-12-24 11:27:26,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 11:27:26,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 11:27:26,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 11:27:26,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 11:27:26,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 11:27:13" (1/3) ... [2023-12-24 11:27:26,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc50073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:27:26, skipping insertion in model container [2023-12-24 11:27:26,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:27:13" (2/3) ... [2023-12-24 11:27:26,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc50073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:27:26, skipping insertion in model container [2023-12-24 11:27:26,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:27:26" (3/3) ... [2023-12-24 11:27:26,333 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-11.i [2023-12-24 11:27:26,344 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 11:27:26,345 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 11:27:26,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 11:27:26,376 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;@7cb51671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 11:27:26,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 11:27:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 11:27:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-24 11:27:26,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 11:27:26,388 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 11:27:26,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 11:27:26,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 11:27:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1788450943, now seen corresponding path program 1 times [2023-12-24 11:27:26,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 11:27:26,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717665798] [2023-12-24 11:27:26,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 11:27:26,402 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 [2023-12-24 11:27:26,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 11:27:26,410 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) [2023-12-24 11:27:26,415 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 [2023-12-24 11:27:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 11:27:26,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 11:27:26,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 11:27:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-12-24 11:27:26,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 11:27:26,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 11:27:26,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717665798] [2023-12-24 11:27:26,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717665798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 11:27:26,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 11:27:26,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 11:27:26,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522591543] [2023-12-24 11:27:26,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 11:27:26,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 11:27:26,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 11:27:26,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 11:27:26,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 11:27:26,961 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 11:27:31,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 11:27:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 11:27:31,203 INFO L93 Difference]: Finished difference Result 93 states and 162 transitions. [2023-12-24 11:27:31,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 11:27:31,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-12-24 11:27:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 11:27:31,291 INFO L225 Difference]: With dead ends: 93 [2023-12-24 11:27:31,292 INFO L226 Difference]: Without dead ends: 46 [2023-12-24 11:27:31,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 11:27:31,296 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-24 11:27:31,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-24 11:27:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-24 11:27:31,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-12-24 11:27:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-24 11:27:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions. [2023-12-24 11:27:31,321 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 68 transitions. Word has length 100 [2023-12-24 11:27:31,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 11:27:31,322 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 68 transitions. [2023-12-24 11:27:31,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-24 11:27:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-12-24 11:27:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-24 11:27:31,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 11:27:31,324 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 11:27:31,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 11:27:31,527 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 [2023-12-24 11:27:31,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 11:27:31,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 11:27:31,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1112841215, now seen corresponding path program 1 times [2023-12-24 11:27:31,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 11:27:31,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737559043] [2023-12-24 11:27:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 11:27:31,530 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 [2023-12-24 11:27:31,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 11:27:31,531 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) [2023-12-24 11:27:31,534 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 [2023-12-24 11:27:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 11:27:31,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 11:27:31,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 11:27:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-24 11:27:33,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 11:27:33,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 11:27:33,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737559043] [2023-12-24 11:27:33,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737559043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 11:27:33,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 11:27:33,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 11:27:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60158515] [2023-12-24 11:27:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 11:27:33,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 11:27:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 11:27:33,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 11:27:33,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 11:27:33,188 INFO L87 Difference]: Start difference. First operand 46 states and 68 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-24 11:27:37,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 11:27:41,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 11:27:46,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 11:27:50,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 11:27:54,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 11:27:58,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 11:28:02,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-24 11:28:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 11:28:02,949 INFO L93 Difference]: Finished difference Result 136 states and 202 transitions. [2023-12-24 11:28:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 11:28:02,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-12-24 11:28:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 11:28:02,952 INFO L225 Difference]: With dead ends: 136 [2023-12-24 11:28:02,952 INFO L226 Difference]: Without dead ends: 91 [2023-12-24 11:28:02,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 11:28:02,953 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2023-12-24 11:28:02,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 121 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 29.7s Time] [2023-12-24 11:28:02,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-24 11:28:02,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2023-12-24 11:28:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 53 states have internal predecessors, (67), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-24 11:28:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2023-12-24 11:28:02,971 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 100 [2023-12-24 11:28:02,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 11:28:02,971 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2023-12-24 11:28:02,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-24 11:28:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2023-12-24 11:28:02,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-24 11:28:02,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 11:28:02,973 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 11:28:02,987 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 [2023-12-24 11:28:03,173 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 [2023-12-24 11:28:03,176 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 11:28:03,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 11:28:03,176 INFO L85 PathProgramCache]: Analyzing trace with hash -662166147, now seen corresponding path program 1 times [2023-12-24 11:28:03,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 11:28:03,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592984315] [2023-12-24 11:28:03,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 11:28:03,177 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 [2023-12-24 11:28:03,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 11:28:03,178 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) [2023-12-24 11:28:03,179 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 [2023-12-24 11:28:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 11:28:03,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 11:28:03,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 11:28:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 255 proven. 21 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-12-24 11:28:04,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 11:28:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-24 11:28:04,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 11:28:04,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592984315] [2023-12-24 11:28:04,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592984315] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 11:28:04,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 11:28:04,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-24 11:28:04,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241212003] [2023-12-24 11:28:04,888 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 11:28:04,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-24 11:28:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 11:28:04,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-24 11:28:04,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-24 11:28:04,889 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-24 11:28:10,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 11:28:14,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 11:28:17,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 11:28:17,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 11:28:17,480 INFO L93 Difference]: Finished difference Result 187 states and 271 transitions. [2023-12-24 11:28:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 11:28:17,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 100 [2023-12-24 11:28:17,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 11:28:17,585 INFO L225 Difference]: With dead ends: 187 [2023-12-24 11:28:17,585 INFO L226 Difference]: Without dead ends: 100 [2023-12-24 11:28:17,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-24 11:28:17,587 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 99 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 85 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-24 11:28:17,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 91 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 107 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2023-12-24 11:28:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-24 11:28:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2023-12-24 11:28:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 59 states have internal predecessors, (71), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-24 11:28:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 135 transitions. [2023-12-24 11:28:17,604 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 135 transitions. Word has length 100 [2023-12-24 11:28:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 11:28:17,605 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 135 transitions. [2023-12-24 11:28:17,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-24 11:28:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 135 transitions. [2023-12-24 11:28:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-24 11:28:17,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 11:28:17,606 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 11:28:17,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 11:28:17,813 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 [2023-12-24 11:28:17,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 11:28:17,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 11:28:17,815 INFO L85 PathProgramCache]: Analyzing trace with hash -662106565, now seen corresponding path program 1 times [2023-12-24 11:28:17,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 11:28:17,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487620358] [2023-12-24 11:28:17,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 11:28:17,815 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 [2023-12-24 11:28:17,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 11:28:17,816 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) [2023-12-24 11:28:17,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 11:28:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 11:28:18,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-24 11:28:18,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 11:28:27,503 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:28:35,794 WARN L293 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:28:43,959 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:28:52,254 WARN L293 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:28:56,339 WARN L854 $PredicateComparison]: unable to prove that (and (not (fp.geq c_~var_1_3~0 c_~var_1_2~0)) (= (_ bv1 8) c_~var_1_11~0) (not (fp.lt (fp.sub c_currentRoundingMode c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (bvsge ((_ zero_extend 24) c_~var_1_13~0) (_ bv1 32))) is different from false [2023-12-24 11:29:00,425 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.geq c_~var_1_3~0 c_~var_1_2~0)) (= (_ bv1 8) c_~var_1_11~0) (not (fp.lt (fp.sub c_currentRoundingMode c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (bvsge ((_ zero_extend 24) c_~var_1_13~0) (_ bv1 32))) is different from true [2023-12-24 11:29:08,731 WARN L293 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:29:17,053 WARN L293 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:29:25,246 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:29:33,559 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:29:41,867 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:29:45,968 WARN L854 $PredicateComparison]: unable to prove that (and (not (fp.geq c_~var_1_3~0 c_~var_1_2~0)) (= (_ bv1 8) c_~var_1_11~0) (not (fp.lt (fp.sub c_currentRoundingMode c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (bvsge ((_ zero_extend 24) c_~var_1_13~0) (_ bv1 32)) (= c_~var_1_16~0 c_~var_1_14~0)) is different from false [2023-12-24 11:29:50,066 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.geq c_~var_1_3~0 c_~var_1_2~0)) (= (_ bv1 8) c_~var_1_11~0) (not (fp.lt (fp.sub c_currentRoundingMode c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (bvsge ((_ zero_extend 24) c_~var_1_13~0) (_ bv1 32)) (= c_~var_1_16~0 c_~var_1_14~0)) is different from true [2023-12-24 11:33:29,504 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:33:37,860 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:33:50,529 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:33:59,183 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:34:07,527 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:34:15,868 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:34:24,215 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:34:32,932 WARN L293 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:34:41,401 WARN L293 SmtUtils]: Spent 8.47s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:34:54,248 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:35:02,592 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:35:10,939 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:35:19,272 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:35:27,567 WARN L293 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:35:35,888 WARN L293 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:35:44,231 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:35:52,607 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:36:00,939 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:36:09,291 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:36:21,991 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:36:30,692 WARN L293 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:36:39,029 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:36:47,381 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:36:55,721 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:37:04,466 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:37:12,828 WARN L293 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:37:21,177 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:37:29,540 WARN L293 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:37:42,247 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:37:50,983 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:37:59,375 WARN L293 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:38:07,746 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:38:16,096 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:38:24,838 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:38:33,237 WARN L293 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:38:41,582 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:38:49,916 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:38:58,261 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:39:06,610 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:39:14,959 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:39:23,308 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:39:31,659 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:39:40,447 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:39:48,786 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:39:57,143 WARN L293 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:40:05,477 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:40:13,837 WARN L293 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:40:22,209 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:40:30,577 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:40:38,975 WARN L293 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:40:47,365 WARN L293 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:40:55,927 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:41:04,309 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:41:12,692 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:41:21,106 WARN L293 SmtUtils]: Spent 8.41s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:41:29,486 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:41:37,857 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:41:46,593 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-24 11:41:54,943 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-24 11:41:57,906 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 [2023-12-24 11:41:57,906 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 [2023-12-24 11:41:58,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 11:41:59,108 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-24 11:41:59,142 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 11:41:59,143 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 101 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-24 11:41:59,146 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-24 11:41:59,146 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 137 [2023-12-24 11:41:59,149 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 11:41:59,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 11:41:59 BoogieIcfgContainer [2023-12-24 11:41:59,150 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 11:41:59,151 INFO L158 Benchmark]: Toolchain (without parser) took 885800.60ms. Allocated memory was 191.9MB in the beginning and 1.0GB in the end (delta: 827.3MB). Free memory was 136.7MB in the beginning and 891.7MB in the end (delta: -755.0MB). Peak memory consumption was 604.4MB. Max. memory is 8.0GB. [2023-12-24 11:41:59,151 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory was 144.4MB in the beginning and 144.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 11:41:59,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.37ms. Allocated memory is still 191.9MB. Free memory was 136.2MB in the beginning and 122.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-24 11:41:59,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.09ms. Allocated memory is still 191.9MB. Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 11:41:59,152 INFO L158 Benchmark]: Boogie Preprocessor took 46.68ms. Allocated memory is still 191.9MB. Free memory was 120.4MB in the beginning and 117.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 11:41:59,152 INFO L158 Benchmark]: RCFGBuilder took 12682.77ms. Allocated memory is still 191.9MB. Free memory was 117.3MB in the beginning and 99.0MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-24 11:41:59,153 INFO L158 Benchmark]: TraceAbstraction took 872823.62ms. Allocated memory was 191.9MB in the beginning and 1.0GB in the end (delta: 827.3MB). Free memory was 98.0MB in the beginning and 891.7MB in the end (delta: -793.8MB). Peak memory consumption was 565.6MB. Max. memory is 8.0GB. [2023-12-24 11:41:59,154 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory was 144.4MB in the beginning and 144.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.37ms. Allocated memory is still 191.9MB. Free memory was 136.2MB in the beginning and 122.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.09ms. Allocated memory is still 191.9MB. Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.68ms. Allocated memory is still 191.9MB. Free memory was 120.4MB in the beginning and 117.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 12682.77ms. Allocated memory is still 191.9MB. Free memory was 117.3MB in the beginning and 99.0MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 872823.62ms. Allocated memory was 191.9MB in the beginning and 1.0GB in the end (delta: 827.3MB). Free memory was 98.0MB in the beginning and 891.7MB in the end (delta: -793.8MB). Peak memory consumption was 565.6MB. 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 101 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 872.8s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 46.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 46.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 277 SdHoareTripleChecker+Invalid, 45.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 107 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 170 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 388 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 396 ConstructedInterpolants, 93 QuantifiedInterpolants, 1259 SizeOfPredicates, 6 NumberOfNonLiveVariables, 493 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1878/1920 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