/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 08:58:46,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 08:58:46,293 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 08:58:46,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 08:58:46,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 08:58:46,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 08:58:46,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 08:58:46,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 08:58:46,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 08:58:46,331 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 08:58:46,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 08:58:46,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 08:58:46,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 08:58:46,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 08:58:46,333 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 08:58:46,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 08:58:46,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 08:58:46,335 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 08:58:46,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 08:58:46,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 08:58:46,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 08:58:46,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 08:58:46,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 08:58:46,338 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 08:58:46,338 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 08:58:46,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 08:58:46,339 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 08:58:46,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 08:58:46,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 08:58:46,339 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 08:58:46,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 08:58:46,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 08:58:46,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 08:58:46,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 08:58:46,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:58:46,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 08:58:46,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 08:58:46,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 08:58:46,342 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 08:58:46,343 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 08:58:46,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 08:58:46,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 08:58:46,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 08:58:46,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 08:58:46,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:58:46,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 08:58:46,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 08:58:46,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 08:58:46,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 08:58:46,624 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 08:58:46,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i [2024-11-03 08:58:48,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 08:58:48,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 08:58:48,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-96.i [2024-11-03 08:58:48,400 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/023ea8080/5d9bceb657f94a53ba58346ac072783a/FLAG877ce888b [2024-11-03 08:58:48,413 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/023ea8080/5d9bceb657f94a53ba58346ac072783a [2024-11-03 08:58:48,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 08:58:48,418 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 08:58:48,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 08:58:48,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 08:58:48,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 08:58:48,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61567061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48, skipping insertion in model container [2024-11-03 08:58:48,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,455 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 08:58:48,613 WARN L250 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_operatoramount_amount50_file-96.i[915,928] [2024-11-03 08:58:48,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:58:48,680 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 08:58:48,691 WARN L250 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_operatoramount_amount50_file-96.i[915,928] [2024-11-03 08:58:48,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:58:48,745 INFO L204 MainTranslator]: Completed translation [2024-11-03 08:58:48,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48 WrapperNode [2024-11-03 08:58:48,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 08:58:48,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 08:58:48,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 08:58:48,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 08:58:48,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,792 INFO L138 Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2024-11-03 08:58:48,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 08:58:48,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 08:58:48,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 08:58:48,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 08:58:48,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,822 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]. [2024-11-03 08:58:48,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 08:58:48,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 08:58:48,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 08:58:48,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 08:58:48,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (1/1) ... [2024-11-03 08:58:48,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:58:48,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 08:58:48,896 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) [2024-11-03 08:58:48,898 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 [2024-11-03 08:58:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 08:58:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 08:58:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 08:58:48,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 08:58:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 08:58:48,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 08:58:48,989 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 08:58:48,991 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 08:58:51,881 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-03 08:58:51,882 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 08:58:51,906 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 08:58:51,906 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 08:58:51,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:58:51 BoogieIcfgContainer [2024-11-03 08:58:51,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 08:58:51,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 08:58:51,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 08:58:51,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 08:58:51,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:58:48" (1/3) ... [2024-11-03 08:58:51,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38463a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:58:51, skipping insertion in model container [2024-11-03 08:58:51,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:58:48" (2/3) ... [2024-11-03 08:58:51,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38463a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:58:51, skipping insertion in model container [2024-11-03 08:58:51,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:58:51" (3/3) ... [2024-11-03 08:58:51,919 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-96.i [2024-11-03 08:58:51,934 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 08:58:51,935 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 08:58:51,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 08:58:51,994 INFO L333 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, 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;@56d6e6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 08:58:51,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 08:58:51,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-03 08:58:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-03 08:58:52,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:58:52,014 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 08:58:52,014 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:58:52,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:58:52,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2110557727, now seen corresponding path program 1 times [2024-11-03 08:58:52,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:58:52,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603447767] [2024-11-03 08:58:52,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:58:52,027 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 [2024-11-03 08:58:52,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:58:52,029 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) [2024-11-03 08:58:52,030 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 [2024-11-03 08:58:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:58:52,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 08:58:52,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:58:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2024-11-03 08:58:52,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:58:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 14 proven. 38 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-03 08:58:52,772 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:58:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603447767] [2024-11-03 08:58:52,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1603447767] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 08:58:52,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 08:58:52,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 08:58:52,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445837080] [2024-11-03 08:58:52,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 08:58:52,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 08:58:52,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:58:52,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 08:58:52,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 08:58:52,811 INFO L87 Difference]: Start difference. First operand has 73 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-03 08:58:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:58:52,841 INFO L93 Difference]: Finished difference Result 136 states and 237 transitions. [2024-11-03 08:58:52,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 08:58:52,843 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 167 [2024-11-03 08:58:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:58:52,852 INFO L225 Difference]: With dead ends: 136 [2024-11-03 08:58:52,852 INFO L226 Difference]: Without dead ends: 66 [2024-11-03 08:58:52,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 08:58:52,861 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 08:58:52,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 08:58:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-03 08:58:52,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-03 08:58:52,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-03 08:58:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2024-11-03 08:58:52,901 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 167 [2024-11-03 08:58:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:58:52,901 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2024-11-03 08:58:52,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-03 08:58:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2024-11-03 08:58:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-03 08:58:52,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:58:52,905 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 08:58:52,915 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 [2024-11-03 08:58:53,106 WARN L453 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 [2024-11-03 08:58:53,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:58:53,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:58:53,108 INFO L85 PathProgramCache]: Analyzing trace with hash 296320473, now seen corresponding path program 1 times [2024-11-03 08:58:53,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:58:53,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980261769] [2024-11-03 08:58:53,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:58:53,109 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 [2024-11-03 08:58:53,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:58:53,110 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) [2024-11-03 08:58:53,113 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 [2024-11-03 08:58:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:58:53,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 08:58:53,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:58:54,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-03 08:58:54,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:58:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-03 08:58:54,568 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:58:54,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980261769] [2024-11-03 08:58:54,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [980261769] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:58:54,569 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:58:54,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 08:58:54,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210156771] [2024-11-03 08:58:54,569 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:58:54,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 08:58:54,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:58:54,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 08:58:54,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 08:58:54,576 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-03 08:58:56,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:58:57,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:58:58,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:58:58,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:58:58,627 INFO L93 Difference]: Finished difference Result 208 states and 305 transitions. [2024-11-03 08:58:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 08:58:58,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 167 [2024-11-03 08:58:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:58:58,652 INFO L225 Difference]: With dead ends: 208 [2024-11-03 08:58:58,652 INFO L226 Difference]: Without dead ends: 145 [2024-11-03 08:58:58,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 08:58:58,655 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 116 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-03 08:58:58,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 295 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-03 08:58:58,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-03 08:58:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 115. [2024-11-03 08:58:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 58 states have (on average 1.103448275862069) internal successors, (64), 58 states have internal predecessors, (64), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-03 08:58:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2024-11-03 08:58:58,695 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 167 [2024-11-03 08:58:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:58:58,698 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2024-11-03 08:58:58,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-03 08:58:58,701 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2024-11-03 08:58:58,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-03 08:58:58,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:58:58,707 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 08:58:58,720 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 [2024-11-03 08:58:58,907 WARN L453 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 [2024-11-03 08:58:58,908 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:58:58,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:58:58,909 INFO L85 PathProgramCache]: Analyzing trace with hash 554485911, now seen corresponding path program 1 times [2024-11-03 08:58:58,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:58:58,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602424736] [2024-11-03 08:58:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:58:58,909 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 [2024-11-03 08:58:58,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:58:58,911 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) [2024-11-03 08:58:58,913 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 [2024-11-03 08:58:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:58:59,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 08:58:59,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:59:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 928 proven. 108 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-03 08:59:00,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:59:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 30 proven. 48 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-03 08:59:01,723 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:59:01,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602424736] [2024-11-03 08:59:01,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1602424736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 08:59:01,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 08:59:01,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 17 [2024-11-03 08:59:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286651824] [2024-11-03 08:59:01,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 08:59:01,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-03 08:59:01,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:59:01,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-03 08:59:01,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-03 08:59:01,727 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2024-11-03 08:59:05,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:59:06,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:59:06,816 INFO L93 Difference]: Finished difference Result 289 states and 398 transitions. [2024-11-03 08:59:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-03 08:59:06,818 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) Word has length 167 [2024-11-03 08:59:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:59:06,826 INFO L225 Difference]: With dead ends: 289 [2024-11-03 08:59:06,826 INFO L226 Difference]: Without dead ends: 226 [2024-11-03 08:59:06,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 319 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=371, Invalid=889, Unknown=0, NotChecked=0, Total=1260 [2024-11-03 08:59:06,832 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 178 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-03 08:59:06,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 458 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-03 08:59:06,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-03 08:59:06,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 207. [2024-11-03 08:59:06,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 112 states have (on average 1.0625) internal successors, (119), 113 states have internal predecessors, (119), 81 states have call successors, (81), 13 states have call predecessors, (81), 13 states have return successors, (81), 80 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-03 08:59:06,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 281 transitions. [2024-11-03 08:59:06,891 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 281 transitions. Word has length 167 [2024-11-03 08:59:06,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:59:06,892 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 281 transitions. [2024-11-03 08:59:06,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2024-11-03 08:59:06,892 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 281 transitions. [2024-11-03 08:59:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-03 08:59:06,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:59:06,899 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 08:59:06,937 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 [2024-11-03 08:59:07,099 WARN L453 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 [2024-11-03 08:59:07,100 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:59:07,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:59:07,101 INFO L85 PathProgramCache]: Analyzing trace with hash 556332953, now seen corresponding path program 1 times [2024-11-03 08:59:07,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:59:07,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295274622] [2024-11-03 08:59:07,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:59:07,101 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 [2024-11-03 08:59:07,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:59:07,104 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) [2024-11-03 08:59:07,106 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 [2024-11-03 08:59:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:59:07,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-03 08:59:07,365 INFO L278 TraceCheckSpWp]: Computing forward predicates...