/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-66.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 20:22:48,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 20:22:48,449 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 20:22:48,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 20:22:48,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 20:22:48,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 20:22:48,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 20:22:48,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 20:22:48,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 20:22:48,493 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 20:22:48,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 20:22:48,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 20:22:48,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 20:22:48,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 20:22:48,495 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 20:22:48,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 20:22:48,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 20:22:48,496 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 20:22:48,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 20:22:48,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 20:22:48,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 20:22:48,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 20:22:48,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 20:22:48,502 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 20:22:48,502 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 20:22:48,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 20:22:48,503 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 20:22:48,503 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 20:22:48,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 20:22:48,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 20:22:48,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 20:22:48,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 20:22:48,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 20:22:48,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 20:22:48,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:22:48,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 20:22:48,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 20:22:48,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 20:22:48,508 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 20:22:48,508 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 20:22:48,508 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 20:22:48,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 20:22:48,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 20:22:48,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 20:22:48,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:22:48,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 20:22:48,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 20:22:48,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 20:22:48,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 20:22:48,762 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 20:22:48,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-66.i [2024-11-05 20:22:50,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 20:22:50,373 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 20:22:50,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-66.i [2024-11-05 20:22:50,385 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5829331a6/1a306e1b29f549649016b5ce5c98d585/FLAGf2783b465 [2024-11-05 20:22:50,402 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5829331a6/1a306e1b29f549649016b5ce5c98d585 [2024-11-05 20:22:50,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 20:22:50,405 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 20:22:50,406 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 20:22:50,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 20:22:50,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 20:22:50,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f7a419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50, skipping insertion in model container [2024-11-05 20:22:50,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,438 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 20:22:50,577 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-66.i[915,928] [2024-11-05 20:22:50,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:22:50,638 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 20:22:50,648 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-66.i[915,928] [2024-11-05 20:22:50,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:22:50,698 INFO L204 MainTranslator]: Completed translation [2024-11-05 20:22:50,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50 WrapperNode [2024-11-05 20:22:50,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 20:22:50,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 20:22:50,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 20:22:50,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 20:22:50,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,739 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-11-05 20:22:50,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 20:22:50,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 20:22:50,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 20:22:50,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 20:22:50,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,755 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,766 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]. [2024-11-05 20:22:50,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 20:22:50,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 20:22:50,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 20:22:50,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 20:22:50,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (1/1) ... [2024-11-05 20:22:50,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:22:50,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 20:22:50,820 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) [2024-11-05 20:22:50,826 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 [2024-11-05 20:22:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 20:22:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 20:22:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 20:22:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 20:22:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 20:22:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 20:22:50,945 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 20:22:50,947 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 20:22:51,351 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-05 20:22:51,354 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 20:22:51,372 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 20:22:51,372 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 20:22:51,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:22:51 BoogieIcfgContainer [2024-11-05 20:22:51,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 20:22:51,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 20:22:51,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 20:22:51,378 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 20:22:51,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:22:50" (1/3) ... [2024-11-05 20:22:51,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72041e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:22:51, skipping insertion in model container [2024-11-05 20:22:51,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:22:50" (2/3) ... [2024-11-05 20:22:51,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72041e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:22:51, skipping insertion in model container [2024-11-05 20:22:51,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:22:51" (3/3) ... [2024-11-05 20:22:51,382 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-66.i [2024-11-05 20:22:51,398 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 20:22:51,399 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 20:22:51,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 20:22:51,484 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;@2a3ed0f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 20:22:51,484 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 20:22:51,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-05 20:22:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-05 20:22:51,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:22:51,504 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:22:51,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:22:51,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:22:51,510 INFO L85 PathProgramCache]: Analyzing trace with hash 38250463, now seen corresponding path program 1 times [2024-11-05 20:22:51,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:22:51,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257012479] [2024-11-05 20:22:51,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:22:51,525 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 [2024-11-05 20:22:51,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:22:51,529 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) [2024-11-05 20:22:51,531 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 [2024-11-05 20:22:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:22:51,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-05 20:22:51,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:22:53,745 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 406 proven. 78 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-05 20:22:53,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:23:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-05 20:23:02,096 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:23:02,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257012479] [2024-11-05 20:23:02,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1257012479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 20:23:02,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 20:23:02,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7] total 18 [2024-11-05 20:23:02,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400360409] [2024-11-05 20:23:02,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 20:23:02,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-05 20:23:02,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:23:02,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-05 20:23:02,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-05 20:23:02,123 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 5 states have call successors, (31), 4 states have call predecessors, (31), 8 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2024-11-05 20:23:36,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:23:36,207 INFO L93 Difference]: Finished difference Result 210 states and 341 transitions. [2024-11-05 20:23:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-05 20:23:36,213 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 5 states have call successors, (31), 4 states have call predecessors, (31), 8 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) Word has length 119 [2024-11-05 20:23:36,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:23:36,221 INFO L225 Difference]: With dead ends: 210 [2024-11-05 20:23:36,221 INFO L226 Difference]: Without dead ends: 152 [2024-11-05 20:23:36,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=548, Invalid=1708, Unknown=0, NotChecked=0, Total=2256 [2024-11-05 20:23:36,227 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2024-11-05 20:23:36,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 355 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2024-11-05 20:23:36,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-05 20:23:36,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 138. [2024-11-05 20:23:36,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 90 states have (on average 1.1666666666666667) internal successors, (105), 92 states have internal predecessors, (105), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-05 20:23:36,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 177 transitions. [2024-11-05 20:23:36,281 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 177 transitions. Word has length 119 [2024-11-05 20:23:36,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:23:36,283 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 177 transitions. [2024-11-05 20:23:36,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 5 states have call successors, (31), 4 states have call predecessors, (31), 8 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2024-11-05 20:23:36,284 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 177 transitions. [2024-11-05 20:23:36,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-05 20:23:36,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:23:36,286 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:23:36,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-05 20:23:36,487 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 [2024-11-05 20:23:36,488 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:23:36,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:23:36,489 INFO L85 PathProgramCache]: Analyzing trace with hash 40097505, now seen corresponding path program 1 times [2024-11-05 20:23:36,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:23:36,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953044125] [2024-11-05 20:23:36,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:23:36,489 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 [2024-11-05 20:23:36,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:23:36,491 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) [2024-11-05 20:23:36,492 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 [2024-11-05 20:23:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:23:36,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-05 20:23:36,646 INFO L278 TraceCheckSpWp]: Computing forward predicates...