/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-21.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:41:21,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:41:21,726 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 12:41:21,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:41:21,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:41:21,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:41:21,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:41:21,755 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:41:21,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:41:21,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:41:21,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:41:21,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:41:21,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:41:21,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:41:21,760 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:41:21,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:41:21,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:41:21,761 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:41:21,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:41:21,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:41:21,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:41:21,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:41:21,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:41:21,763 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:41:21,763 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:41:21,763 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:41:21,763 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:41:21,763 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:41:21,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:41:21,764 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:41:21,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:41:21,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:41:21,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:41:21,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:41:21,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:41:21,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:41:21,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:41:21,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:41:21,765 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:41:21,765 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:41:21,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:41:21,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:41:21,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:41:21,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:41:21,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:41:21,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:41:21,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:41:21,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:41:21,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:41:21,971 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:41:21,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2024-11-03 12:41:23,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:41:23,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:41:23,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2024-11-03 12:41:23,581 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51800f9eb/5f2a952d8492454fbaa16546eedfb22b/FLAGbb771889b [2024-11-03 12:41:23,959 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51800f9eb/5f2a952d8492454fbaa16546eedfb22b [2024-11-03 12:41:23,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:41:23,962 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:41:23,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:41:23,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:41:23,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:41:23,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:41:23" (1/1) ... [2024-11-03 12:41:23,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757027f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:23, skipping insertion in model container [2024-11-03 12:41:23,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:41:23" (1/1) ... [2024-11-03 12:41:23,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:41:24,090 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_amount10_file-21.i[915,928] [2024-11-03 12:41:24,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:41:24,126 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:41:24,134 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_amount10_file-21.i[915,928] [2024-11-03 12:41:24,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:41:24,161 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:41:24,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24 WrapperNode [2024-11-03 12:41:24,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:41:24,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:41:24,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:41:24,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:41:24,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,199 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2024-11-03 12:41:24,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:41:24,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:41:24,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:41:24,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:41:24,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,234 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 12:41:24,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:41:24,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:41:24,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:41:24,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:41:24,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (1/1) ... [2024-11-03 12:41:24,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:41:24,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:41:24,277 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 12:41:24,280 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 12:41:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:41:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:41:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:41:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:41:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:41:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:41:24,351 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:41:24,352 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:41:24,600 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-03 12:41:24,600 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:41:24,613 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:41:24,614 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:41:24,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:41:24 BoogieIcfgContainer [2024-11-03 12:41:24,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:41:24,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:41:24,619 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:41:24,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:41:24,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:41:23" (1/3) ... [2024-11-03 12:41:24,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1555e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:41:24, skipping insertion in model container [2024-11-03 12:41:24,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:41:24" (2/3) ... [2024-11-03 12:41:24,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1555e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:41:24, skipping insertion in model container [2024-11-03 12:41:24,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:41:24" (3/3) ... [2024-11-03 12:41:24,626 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-21.i [2024-11-03 12:41:24,639 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:41:24,640 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:41:24,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:41:24,702 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;@388142fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:41:24,702 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:41:24,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-03 12:41:24,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-03 12:41:24,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:41:24,711 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 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 12:41:24,712 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:41:24,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:41:24,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1845334235, now seen corresponding path program 1 times [2024-11-03 12:41:24,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:41:24,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400156572] [2024-11-03 12:41:24,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:41:24,723 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:41:24,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:41:24,730 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:41:24,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:41:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:41:24,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:41:24,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:41:24,864 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 12:41:24,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:41:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 12:41:24,920 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:41:24,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400156572] [2024-11-03 12:41:24,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1400156572] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:41:24,921 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:41:24,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:41:24,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013563919] [2024-11-03 12:41:24,925 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:41:24,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:41:24,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:41:24,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:41:24,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:41:24,949 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-03 12:41:24,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:41:24,963 INFO L93 Difference]: Finished difference Result 51 states and 76 transitions. [2024-11-03 12:41:24,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:41:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 43 [2024-11-03 12:41:24,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:41:24,970 INFO L225 Difference]: With dead ends: 51 [2024-11-03 12:41:24,970 INFO L226 Difference]: Without dead ends: 25 [2024-11-03 12:41:24,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 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 12:41:24,974 INFO L432 NwaCegarLoop]: 31 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, 31 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 12:41:24,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:41:24,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-03 12:41:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-03 12:41:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-03 12:41:24,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2024-11-03 12:41:25,001 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 43 [2024-11-03 12:41:25,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:41:25,001 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-11-03 12:41:25,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-03 12:41:25,002 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-11-03 12:41:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-03 12:41:25,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:41:25,003 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 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 12:41:25,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 12:41:25,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:41:25,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:41:25,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:41:25,209 INFO L85 PathProgramCache]: Analyzing trace with hash 797153179, now seen corresponding path program 1 times [2024-11-03 12:41:25,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:41:25,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528809026] [2024-11-03 12:41:25,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:41:25,209 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:41:25,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:41:25,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:41:25,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:41:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:41:25,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-03 12:41:25,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:41:26,151 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-03 12:41:26,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:41:30,778 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-03 12:41:30,779 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:41:30,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528809026] [2024-11-03 12:41:30,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [528809026] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:41:30,779 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:41:30,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 18 [2024-11-03 12:41:30,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875782090] [2024-11-03 12:41:30,780 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:41:30,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 12:41:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:41:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 12:41:30,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-03 12:41:30,782 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 12:41:42,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:41:42,239 INFO L93 Difference]: Finished difference Result 94 states and 108 transitions. [2024-11-03 12:41:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 12:41:42,248 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 43 [2024-11-03 12:41:42,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:41:42,250 INFO L225 Difference]: With dead ends: 94 [2024-11-03 12:41:42,250 INFO L226 Difference]: Without dead ends: 92 [2024-11-03 12:41:42,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2024-11-03 12:41:42,253 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 179 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-03 12:41:42,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 174 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-03 12:41:42,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-03 12:41:42,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 69. [2024-11-03 12:41:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 48 states have internal predecessors, (51), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-03 12:41:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2024-11-03 12:41:42,269 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 43 [2024-11-03 12:41:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:41:42,269 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2024-11-03 12:41:42,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 12:41:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2024-11-03 12:41:42,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-03 12:41:42,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:41:42,271 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 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 12:41:42,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:41:42,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:41:42,471 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:41:42,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:41:42,472 INFO L85 PathProgramCache]: Analyzing trace with hash 799000221, now seen corresponding path program 1 times [2024-11-03 12:41:42,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:41:42,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268078352] [2024-11-03 12:41:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:41:42,472 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:41:42,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:41:42,474 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:41:42,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:41:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:41:42,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-03 12:41:42,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:41:43,990 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-03 12:41:43,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:41:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-03 12:41:47,926 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:41:47,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268078352] [2024-11-03 12:41:47,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [268078352] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:41:47,927 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:41:47,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 18 [2024-11-03 12:41:47,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639099239] [2024-11-03 12:41:47,927 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:41:47,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 12:41:47,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:41:47,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 12:41:47,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-03 12:41:47,929 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 12:41:57,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:41:57,450 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2024-11-03 12:41:57,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-03 12:41:57,456 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) Word has length 43 [2024-11-03 12:41:57,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:41:57,456 INFO L225 Difference]: With dead ends: 78 [2024-11-03 12:41:57,457 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 12:41:57,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2024-11-03 12:41:57,458 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 76 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-03 12:41:57,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 117 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-03 12:41:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 12:41:57,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 12:41:57,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 12:41:57,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 12:41:57,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2024-11-03 12:41:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:41:57,460 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 12:41:57,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 4 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 12:41:57,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 12:41:57,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 12:41:57,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 12:41:57,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:41:57,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:41:57,666 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 12:41:57,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 12:42:13,174 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 12:42:13,204 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-03 12:42:13,205 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 12:42:13,205 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 12:42:13,205 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 12:42:13,206 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 12:42:13,206 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 12:42:13,206 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 12:42:13,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 12:42:13,215 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-03 12:42:13,219 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-03 12:42:13,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 12:42:13 BoogieIcfgContainer [2024-11-03 12:42:13,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 12:42:13,225 INFO L158 Benchmark]: Toolchain (without parser) took 49262.78ms. Allocated memory was 208.7MB in the beginning and 375.4MB in the end (delta: 166.7MB). Free memory was 170.6MB in the beginning and 287.2MB in the end (delta: -116.6MB). Peak memory consumption was 213.7MB. Max. memory is 8.0GB. [2024-11-03 12:42:13,225 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 208.7MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 12:42:13,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.35ms. Allocated memory is still 208.7MB. Free memory was 170.2MB in the beginning and 156.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 12:42:13,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 208.7MB. Free memory was 156.6MB in the beginning and 155.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-03 12:42:13,226 INFO L158 Benchmark]: Boogie Preprocessor took 46.27ms. Allocated memory is still 208.7MB. Free memory was 155.2MB in the beginning and 152.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 12:42:13,226 INFO L158 Benchmark]: RCFGBuilder took 365.91ms. Allocated memory is still 208.7MB. Free memory was 152.8MB in the beginning and 140.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-03 12:42:13,226 INFO L158 Benchmark]: TraceAbstraction took 48605.53ms. Allocated memory was 208.7MB in the beginning and 375.4MB in the end (delta: 166.7MB). Free memory was 140.2MB in the beginning and 287.2MB in the end (delta: -147.0MB). Peak memory consumption was 183.3MB. Max. memory is 8.0GB. [2024-11-03 12:42:13,231 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 208.7MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 199.35ms. Allocated memory is still 208.7MB. Free memory was 170.2MB in the beginning and 156.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 208.7MB. Free memory was 156.6MB in the beginning and 155.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.27ms. Allocated memory is still 208.7MB. Free memory was 155.2MB in the beginning and 152.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 365.91ms. Allocated memory is still 208.7MB. Free memory was 152.8MB in the beginning and 140.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 48605.53ms. Allocated memory was 208.7MB in the beginning and 375.4MB in the end (delta: 166.7MB). Free memory was 140.2MB in the beginning and 287.2MB in the end (delta: -147.0MB). Peak memory consumption was 183.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.0s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 256 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 322 SdHoareTripleChecker+Invalid, 11.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 239 mSDsCounter, 139 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 463 IncrementalHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 139 mSolverCounterUnsat, 83 mSDtfsCounter, 463 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=2, InterpolantAutomatonStates: 46, 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, 23 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 252 ConstructedInterpolants, 11 QuantifiedInterpolants, 1768 SizeOfPredicates, 25 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 360/360 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((var_1_9 == var_1_8) && (var_1_9 == var_1_12)) || ((0 == ((var_1_1 + 16) % 4294967296)) && (0 == ((16 + last_1_var_1_1) % 4294967296)))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_6 == \old(var_1_6))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (last_1_var_1_1 == \old(last_1_var_1_1))) RESULT: Ultimate proved your program to be correct! [2024-11-03 12:42:13,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...