/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 'cvc4 --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-93.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 01:10:45,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 01:10:45,331 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 01:10:45,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 01:10:45,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 01:10:45,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 01:10:45,353 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 01:10:45,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 01:10:45,354 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 01:10:45,354 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 01:10:45,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 01:10:45,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 01:10:45,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 01:10:45,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 01:10:45,355 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 01:10:45,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 01:10:45,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 01:10:45,356 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 01:10:45,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 01:10:45,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 01:10:45,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 01:10:45,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 01:10:45,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 01:10:45,357 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 01:10:45,358 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 01:10:45,358 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 01:10:45,358 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 01:10:45,358 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 01:10:45,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 01:10:45,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 01:10:45,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 01:10:45,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 01:10:45,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 01:10:45,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 01:10:45,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:10:45,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 01:10:45,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 01:10:45,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 01:10:45,364 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 01:10:45,364 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 01:10:45,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 01:10:45,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 01:10:45,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 01:10:45,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 01:10:45,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 01:10:45,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 01:10:45,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 01:10:45,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 01:10:45,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 01:10:45,564 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 01:10:45,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-93.i [2024-11-03 01:10:46,770 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 01:10:46,903 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 01:10:46,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-93.i [2024-11-03 01:10:46,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a84fb74b8/9f1b24cf10134c739d17e268ca93c77c/FLAG7c952f38d [2024-11-03 01:10:47,327 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a84fb74b8/9f1b24cf10134c739d17e268ca93c77c [2024-11-03 01:10:47,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 01:10:47,330 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 01:10:47,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 01:10:47,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 01:10:47,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 01:10:47,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f164157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47, skipping insertion in model container [2024-11-03 01:10:47,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 01:10:47,459 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-93.i[915,928] [2024-11-03 01:10:47,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:10:47,489 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 01:10:47,497 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-93.i[915,928] [2024-11-03 01:10:47,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:10:47,521 INFO L204 MainTranslator]: Completed translation [2024-11-03 01:10:47,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47 WrapperNode [2024-11-03 01:10:47,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 01:10:47,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 01:10:47,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 01:10:47,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 01:10:47,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,548 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 70 [2024-11-03 01:10:47,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 01:10:47,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 01:10:47,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 01:10:47,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 01:10:47,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,569 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 01:10:47,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,570 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 01:10:47,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 01:10:47,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 01:10:47,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 01:10:47,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (1/1) ... [2024-11-03 01:10:47,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:10:47,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 01:10:47,608 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 01:10:47,609 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 01:10:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 01:10:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 01:10:47,626 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 01:10:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 01:10:47,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 01:10:47,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 01:10:47,679 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 01:10:47,680 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 01:10:47,820 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 01:10:47,820 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 01:10:47,830 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 01:10:47,831 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 01:10:47,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:10:47 BoogieIcfgContainer [2024-11-03 01:10:47,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 01:10:47,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 01:10:47,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 01:10:47,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 01:10:47,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:10:47" (1/3) ... [2024-11-03 01:10:47,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abb551f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:10:47, skipping insertion in model container [2024-11-03 01:10:47,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:10:47" (2/3) ... [2024-11-03 01:10:47,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abb551f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:10:47, skipping insertion in model container [2024-11-03 01:10:47,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:10:47" (3/3) ... [2024-11-03 01:10:47,838 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-93.i [2024-11-03 01:10:47,851 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 01:10:47,851 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 01:10:47,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 01:10:47,897 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;@60778631, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 01:10:47,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 01:10:47,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-03 01:10:47,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-03 01:10:47,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:10:47,907 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:47,907 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:10:47,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:10:47,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1724203162, now seen corresponding path program 1 times [2024-11-03 01:10:47,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:10:47,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778100321] [2024-11-03 01:10:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:10:47,919 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:10:47,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:10:47,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:10:47,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 01:10:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:10:48,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 01:10:48,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:10:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-03 01:10:48,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:10:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-03 01:10:48,142 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:10:48,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778100321] [2024-11-03 01:10:48,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1778100321] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:10:48,143 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:10:48,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 01:10:48,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833655860] [2024-11-03 01:10:48,145 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:10:48,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 01:10:48,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:10:48,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 01:10:48,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 01:10:48,170 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-03 01:10:48,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:10:48,185 INFO L93 Difference]: Finished difference Result 65 states and 102 transitions. [2024-11-03 01:10:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 01:10:48,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2024-11-03 01:10:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:10:48,191 INFO L225 Difference]: With dead ends: 65 [2024-11-03 01:10:48,191 INFO L226 Difference]: Without dead ends: 32 [2024-11-03 01:10:48,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 01:10:48,205 INFO L432 NwaCegarLoop]: 42 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, 42 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 01:10:48,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 01:10:48,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-03 01:10:48,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-03 01:10:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-03 01:10:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2024-11-03 01:10:48,233 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 66 [2024-11-03 01:10:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:10:48,234 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2024-11-03 01:10:48,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-03 01:10:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2024-11-03 01:10:48,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-03 01:10:48,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:10:48,236 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:48,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 01:10:48,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:10:48,437 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:10:48,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:10:48,437 INFO L85 PathProgramCache]: Analyzing trace with hash -346134694, now seen corresponding path program 1 times [2024-11-03 01:10:48,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:10:48,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683052364] [2024-11-03 01:10:48,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:10:48,438 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:10:48,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:10:48,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:10:48,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 01:10:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:10:48,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 01:10:48,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:10:53,851 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-03 01:10:53,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:10:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-03 01:10:55,743 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:10:55,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683052364] [2024-11-03 01:10:55,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [683052364] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:10:55,744 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:10:55,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2024-11-03 01:10:55,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128405626] [2024-11-03 01:10:55,744 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:10:55,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 01:10:55,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:10:55,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 01:10:55,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 01:10:55,747 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-03 01:10:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:10:55,838 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2024-11-03 01:10:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 01:10:55,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2024-11-03 01:10:55,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:10:55,840 INFO L225 Difference]: With dead ends: 41 [2024-11-03 01:10:55,840 INFO L226 Difference]: Without dead ends: 39 [2024-11-03 01:10:55,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-03 01:10:55,841 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 5 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 01:10:55,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 168 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 01:10:55,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-03 01:10:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2024-11-03 01:10:55,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-03 01:10:55,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2024-11-03 01:10:55,852 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 66 [2024-11-03 01:10:55,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:10:55,853 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2024-11-03 01:10:55,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-03 01:10:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2024-11-03 01:10:55,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-03 01:10:55,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:10:55,854 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:55,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 01:10:56,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:10:56,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:10:56,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:10:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash -288876392, now seen corresponding path program 1 times [2024-11-03 01:10:56,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:10:56,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868663027] [2024-11-03 01:10:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:10:56,058 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:10:56,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:10:56,059 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:10:56,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 01:10:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:10:56,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 01:10:56,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:10:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-03 01:10:57,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:10:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-03 01:10:59,450 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:10:59,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868663027] [2024-11-03 01:10:59,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1868663027] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:10:59,450 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:10:59,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2024-11-03 01:10:59,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538671230] [2024-11-03 01:10:59,451 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:10:59,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 01:10:59,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:10:59,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 01:10:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-03 01:10:59,452 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-03 01:11:00,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:11:00,065 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2024-11-03 01:11:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 01:11:00,065 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2024-11-03 01:11:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:11:00,066 INFO L225 Difference]: With dead ends: 41 [2024-11-03 01:11:00,066 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 01:11:00,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-03 01:11:00,068 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 20 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 01:11:00,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 181 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 01:11:00,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 01:11:00,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 01:11:00,069 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 01:11:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 01:11:00,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2024-11-03 01:11:00,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:11:00,069 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 01:11:00,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-03 01:11:00,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 01:11:00,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 01:11:00,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 01:11:00,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-03 01:11:00,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:11:00,276 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 01:11:00,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 01:11:00,289 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 01:11:00,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:11:00 BoogieIcfgContainer [2024-11-03 01:11:00,305 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 01:11:00,305 INFO L158 Benchmark]: Toolchain (without parser) took 12975.03ms. Allocated memory was 355.5MB in the beginning and 1.0GB in the end (delta: 660.6MB). Free memory was 309.2MB in the beginning and 704.1MB in the end (delta: -395.0MB). Peak memory consumption was 266.7MB. Max. memory is 8.0GB. [2024-11-03 01:11:00,305 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 206.6MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 01:11:00,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.29ms. Allocated memory is still 355.5MB. Free memory was 309.2MB in the beginning and 295.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 01:11:00,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.53ms. Allocated memory is still 355.5MB. Free memory was 295.0MB in the beginning and 293.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-03 01:11:00,306 INFO L158 Benchmark]: Boogie Preprocessor took 38.01ms. Allocated memory is still 355.5MB. Free memory was 293.4MB in the beginning and 291.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 01:11:00,306 INFO L158 Benchmark]: RCFGBuilder took 243.97ms. Allocated memory is still 355.5MB. Free memory was 291.3MB in the beginning and 278.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-03 01:11:00,307 INFO L158 Benchmark]: TraceAbstraction took 12471.90ms. Allocated memory was 355.5MB in the beginning and 1.0GB in the end (delta: 660.6MB). Free memory was 277.7MB in the beginning and 704.1MB in the end (delta: -426.4MB). Peak memory consumption was 235.2MB. Max. memory is 8.0GB. [2024-11-03 01:11:00,308 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 206.6MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.29ms. Allocated memory is still 355.5MB. Free memory was 309.2MB in the beginning and 295.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.53ms. Allocated memory is still 355.5MB. Free memory was 295.0MB in the beginning and 293.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.01ms. Allocated memory is still 355.5MB. Free memory was 293.4MB in the beginning and 291.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 243.97ms. Allocated memory is still 355.5MB. Free memory was 291.3MB in the beginning and 278.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 12471.90ms. Allocated memory was 355.5MB in the beginning and 1.0GB in the end (delta: 660.6MB). Free memory was 277.7MB in the beginning and 704.1MB in the end (delta: -426.4MB). Peak memory consumption was 235.2MB. 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, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 3, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 391 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 268 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 123 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 396 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 10.6s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 1410 SizeOfPredicates, 19 NumberOfNonLiveVariables, 328 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 1080/1080 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: 65]: 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_2 == \old(var_1_2))) && (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))) RESULT: Ultimate proved your program to be correct! [2024-11-03 01:11:00,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...