/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 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-66.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 04:50:26,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 04:50:26,705 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 04:50:26,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 04:50:26,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 04:50:26,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 04:50:26,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 04:50:26,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 04:50:26,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 04:50:26,731 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 04:50:26,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 04:50:26,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 04:50:26,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 04:50:26,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 04:50:26,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 04:50:26,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 04:50:26,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 04:50:26,733 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 04:50:26,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 04:50:26,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 04:50:26,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 04:50:26,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 04:50:26,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 04:50:26,737 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 04:50:26,738 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 04:50:26,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 04:50:26,738 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 04:50:26,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 04:50:26,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 04:50:26,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 04:50:26,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 04:50:26,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 04:50:26,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 04:50:26,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 04:50:26,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 04:50:26,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 04:50:26,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 04:50:26,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 04:50:26,740 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 04:50:26,741 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 04:50:26,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 04:50:26,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 04:50:26,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 04:50:26,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 04:50:26,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 04:50:26,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 04:50:26,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 04:50:26,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 04:50:26,937 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 04:50:26,937 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 04:50:26,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-66.i [2024-11-03 04:50:28,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 04:50:28,326 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 04:50:28,326 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-66.i [2024-11-03 04:50:28,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ef0bac7e/d40e1bf4a93743708996e9c7a85df43d/FLAG7c740eb0c [2024-11-03 04:50:28,735 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ef0bac7e/d40e1bf4a93743708996e9c7a85df43d [2024-11-03 04:50:28,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 04:50:28,740 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 04:50:28,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 04:50:28,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 04:50:28,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 04:50:28,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b119d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28, skipping insertion in model container [2024-11-03 04:50:28,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 04:50:28,877 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-66.i[915,928] [2024-11-03 04:50:28,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 04:50:28,907 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 04:50:28,915 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-66.i[915,928] [2024-11-03 04:50:28,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 04:50:28,935 INFO L204 MainTranslator]: Completed translation [2024-11-03 04:50:28,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28 WrapperNode [2024-11-03 04:50:28,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 04:50:28,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 04:50:28,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 04:50:28,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 04:50:28,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,964 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2024-11-03 04:50:28,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 04:50:28,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 04:50:28,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 04:50:28,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 04:50:28,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,983 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 04:50:28,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,993 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 04:50:28,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 04:50:28,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 04:50:28,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 04:50:28,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (1/1) ... [2024-11-03 04:50:28,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 04:50:29,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 04:50:29,022 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 04:50:29,024 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 04:50:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 04:50:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 04:50:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 04:50:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 04:50:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 04:50:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 04:50:29,106 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 04:50:29,108 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 04:50:29,245 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-03 04:50:29,245 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 04:50:29,253 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 04:50:29,253 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 04:50:29,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:50:29 BoogieIcfgContainer [2024-11-03 04:50:29,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 04:50:29,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 04:50:29,256 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 04:50:29,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 04:50:29,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:50:28" (1/3) ... [2024-11-03 04:50:29,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f7718b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:50:29, skipping insertion in model container [2024-11-03 04:50:29,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:28" (2/3) ... [2024-11-03 04:50:29,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f7718b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:50:29, skipping insertion in model container [2024-11-03 04:50:29,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:50:29" (3/3) ... [2024-11-03 04:50:29,259 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-66.i [2024-11-03 04:50:29,270 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 04:50:29,270 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 04:50:29,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 04:50:29,316 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;@5a3ab5d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 04:50:29,316 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 04:50:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-03 04:50:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-03 04:50:29,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:50:29,325 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:29,325 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:50:29,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:50:29,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1560811563, now seen corresponding path program 1 times [2024-11-03 04:50:29,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:50:29,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78771435] [2024-11-03 04:50:29,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:50:29,335 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:50:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:50:29,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:50:29,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 04:50:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:50:29,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 04:50:29,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:50:29,459 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-03 04:50:29,460 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:50:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-03 04:50:29,524 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:50:29,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78771435] [2024-11-03 04:50:29,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [78771435] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 04:50:29,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 04:50:29,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 04:50:29,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965561699] [2024-11-03 04:50:29,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 04:50:29,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 04:50:29,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:50:29,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 04:50:29,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 04:50:29,549 INFO L87 Difference]: Start difference. First operand has 39 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 04:50:29,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:50:29,569 INFO L93 Difference]: Finished difference Result 71 states and 114 transitions. [2024-11-03 04:50:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 04:50:29,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 77 [2024-11-03 04:50:29,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:50:29,576 INFO L225 Difference]: With dead ends: 71 [2024-11-03 04:50:29,576 INFO L226 Difference]: Without dead ends: 35 [2024-11-03 04:50:29,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 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 04:50:29,581 INFO L432 NwaCegarLoop]: 47 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, 47 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 04:50:29,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 04:50:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-03 04:50:29,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-03 04:50:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-03 04:50:29,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2024-11-03 04:50:29,624 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 47 transitions. Word has length 77 [2024-11-03 04:50:29,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:50:29,624 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 47 transitions. [2024-11-03 04:50:29,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-03 04:50:29,625 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2024-11-03 04:50:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-03 04:50:29,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:50:29,627 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:29,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 04:50:29,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 04:50:29,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:50:29,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:50:29,830 INFO L85 PathProgramCache]: Analyzing trace with hash 886095829, now seen corresponding path program 1 times [2024-11-03 04:50:29,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:50:29,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119565500] [2024-11-03 04:50:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:50:29,830 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:50:29,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:50:29,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:50:29,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 04:50:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:50:29,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-03 04:50:29,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:50:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 176 proven. 30 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-03 04:50:30,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:50:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-03 04:50:31,180 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:50:31,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119565500] [2024-11-03 04:50:31,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2119565500] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 04:50:31,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 04:50:31,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2024-11-03 04:50:31,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047485127] [2024-11-03 04:50:31,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 04:50:31,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 04:50:31,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:50:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 04:50:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2024-11-03 04:50:31,187 INFO L87 Difference]: Start difference. First operand 35 states and 47 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 04:50:31,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:50:31,485 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2024-11-03 04:50:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 04:50:31,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 77 [2024-11-03 04:50:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:50:31,487 INFO L225 Difference]: With dead ends: 44 [2024-11-03 04:50:31,487 INFO L226 Difference]: Without dead ends: 42 [2024-11-03 04:50:31,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2024-11-03 04:50:31,489 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 04:50:31,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 200 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 04:50:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-03 04:50:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2024-11-03 04:50:31,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-03 04:50:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2024-11-03 04:50:31,494 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 77 [2024-11-03 04:50:31,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:50:31,495 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2024-11-03 04:50:31,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 04:50:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2024-11-03 04:50:31,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-03 04:50:31,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 04:50:31,497 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:50:31,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-03 04:50:31,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 04:50:31,698 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 04:50:31,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 04:50:31,698 INFO L85 PathProgramCache]: Analyzing trace with hash 943354131, now seen corresponding path program 1 times [2024-11-03 04:50:31,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 04:50:31,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139012831] [2024-11-03 04:50:31,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 04:50:31,699 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 04:50:31,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 04:50:31,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 04:50:31,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 04:50:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 04:50:31,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-03 04:50:31,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 04:50:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-03 04:50:32,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 04:50:32,462 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-03 04:50:32,462 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 04:50:32,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139012831] [2024-11-03 04:50:32,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1139012831] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 04:50:32,462 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 04:50:32,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2024-11-03 04:50:32,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151181690] [2024-11-03 04:50:32,463 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 04:50:32,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 04:50:32,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 04:50:32,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 04:50:32,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-03 04:50:32,466 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 04:50:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 04:50:33,179 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2024-11-03 04:50:33,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-03 04:50:33,180 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 77 [2024-11-03 04:50:33,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 04:50:33,180 INFO L225 Difference]: With dead ends: 78 [2024-11-03 04:50:33,180 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 04:50:33,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-11-03 04:50:33,182 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 46 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 04:50:33,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 231 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 04:50:33,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 04:50:33,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 04:50:33,183 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 04:50:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 04:50:33,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2024-11-03 04:50:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 04:50:33,183 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 04:50:33,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 04:50:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 04:50:33,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 04:50:33,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 04:50:33,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 04:50:33,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 04:50:33,390 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 04:50:33,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 04:50:33,422 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 04:50:33,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:50:33 BoogieIcfgContainer [2024-11-03 04:50:33,436 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 04:50:33,436 INFO L158 Benchmark]: Toolchain (without parser) took 4696.89ms. Allocated memory was 366.0MB in the beginning and 445.6MB in the end (delta: 79.7MB). Free memory was 327.5MB in the beginning and 310.8MB in the end (delta: 16.6MB). Peak memory consumption was 97.4MB. Max. memory is 8.0GB. [2024-11-03 04:50:33,437 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 219.2MB. Free memory is still 172.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 04:50:33,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.12ms. Allocated memory is still 366.0MB. Free memory was 327.1MB in the beginning and 313.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 04:50:33,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.23ms. Allocated memory is still 366.0MB. Free memory was 313.4MB in the beginning and 311.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 04:50:33,437 INFO L158 Benchmark]: Boogie Preprocessor took 28.17ms. Allocated memory is still 366.0MB. Free memory was 311.3MB in the beginning and 309.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 04:50:33,438 INFO L158 Benchmark]: RCFGBuilder took 260.53ms. Allocated memory is still 366.0MB. Free memory was 309.2MB in the beginning and 296.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-03 04:50:33,438 INFO L158 Benchmark]: TraceAbstraction took 4180.49ms. Allocated memory was 366.0MB in the beginning and 445.6MB in the end (delta: 79.7MB). Free memory was 295.6MB in the beginning and 310.8MB in the end (delta: -15.2MB). Peak memory consumption was 64.9MB. Max. memory is 8.0GB. [2024-11-03 04:50:33,440 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 219.2MB. Free memory is still 172.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 195.12ms. Allocated memory is still 366.0MB. Free memory was 327.1MB in the beginning and 313.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.23ms. Allocated memory is still 366.0MB. Free memory was 313.4MB in the beginning and 311.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.17ms. Allocated memory is still 366.0MB. Free memory was 311.3MB in the beginning and 309.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 260.53ms. Allocated memory is still 366.0MB. Free memory was 309.2MB in the beginning and 296.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4180.49ms. Allocated memory was 366.0MB in the beginning and 445.6MB in the end (delta: 79.7MB). Free memory was 295.6MB in the beginning and 310.8MB in the end (delta: -15.2MB). Peak memory consumption was 64.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 478 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 348 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 250 IncrementalHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 130 mSDtfsCounter, 250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 29, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 456 ConstructedInterpolants, 0 QuantifiedInterpolants, 1618 SizeOfPredicates, 64 NumberOfNonLiveVariables, 384 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 1532/1584 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: 74]: Loop Invariant Derived loop invariant: 1 - 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_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (last_1_var_1_1 == \old(last_1_var_1_1))) RESULT: Ultimate proved your program to be correct! [2024-11-03 04:50:33,462 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...