/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-99.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 01:11:01,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 01:11:01,838 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 01:11:01,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 01:11:01,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 01:11:01,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 01:11:01,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 01:11:01,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 01:11:01,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 01:11:01,872 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 01:11:01,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 01:11:01,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 01:11:01,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 01:11:01,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 01:11:01,874 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 01:11:01,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 01:11:01,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 01:11:01,877 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 01:11:01,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 01:11:01,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 01:11:01,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 01:11:01,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 01:11:01,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 01:11:01,881 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 01:11:01,881 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 01:11:01,881 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 01:11:01,881 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 01:11:01,881 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 01:11:01,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 01:11:01,882 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 01:11:01,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 01:11:01,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 01:11:01,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 01:11:01,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 01:11:01,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:11:01,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 01:11:01,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 01:11:01,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 01:11:01,884 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 01:11:01,884 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 01:11:01,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 01:11:01,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 01:11:01,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 01:11:01,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 01:11:01,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 01:11:02,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 01:11:02,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 01:11:02,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 01:11:02,155 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 01:11:02,155 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 01:11:02,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-99.i [2024-11-03 01:11:03,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 01:11:03,704 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 01:11:03,705 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-99.i [2024-11-03 01:11:03,711 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c5d7d193/4399c93a7c95454384ffb2d1ef615ece/FLAG11f2497e3 [2024-11-03 01:11:03,729 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c5d7d193/4399c93a7c95454384ffb2d1ef615ece [2024-11-03 01:11:03,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 01:11:03,733 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 01:11:03,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 01:11:03,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 01:11:03,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 01:11:03,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:11:03" (1/1) ... [2024-11-03 01:11:03,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5abb6ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:03, skipping insertion in model container [2024-11-03 01:11:03,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:11:03" (1/1) ... [2024-11-03 01:11:03,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 01:11:03,924 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-99.i[915,928] [2024-11-03 01:11:03,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:11:03,976 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 01:11:03,992 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-99.i[915,928] [2024-11-03 01:11:04,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:11:04,021 INFO L204 MainTranslator]: Completed translation [2024-11-03 01:11:04,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04 WrapperNode [2024-11-03 01:11:04,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 01:11:04,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 01:11:04,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 01:11:04,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 01:11:04,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,058 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2024-11-03 01:11:04,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 01:11:04,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 01:11:04,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 01:11:04,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 01:11:04,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,084 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 01:11:04,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 01:11:04,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 01:11:04,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 01:11:04,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 01:11:04,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (1/1) ... [2024-11-03 01:11:04,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:11:04,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 01:11:04,134 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 01:11:04,137 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 01:11:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 01:11:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 01:11:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 01:11:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 01:11:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 01:11:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 01:11:04,245 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 01:11:04,247 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 01:11:04,641 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 01:11:04,641 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 01:11:04,657 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 01:11:04,657 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 01:11:04,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:11:04 BoogieIcfgContainer [2024-11-03 01:11:04,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 01:11:04,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 01:11:04,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 01:11:04,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 01:11:04,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:11:03" (1/3) ... [2024-11-03 01:11:04,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122e3b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:11:04, skipping insertion in model container [2024-11-03 01:11:04,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:11:04" (2/3) ... [2024-11-03 01:11:04,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122e3b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:11:04, skipping insertion in model container [2024-11-03 01:11:04,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:11:04" (3/3) ... [2024-11-03 01:11:04,667 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-99.i [2024-11-03 01:11:04,682 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 01:11:04,683 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 01:11:04,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 01:11:04,758 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;@7589373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 01:11:04,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 01:11:04,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-03 01:11:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-03 01:11:04,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:11:04,773 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:04,774 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:11:04,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:11:04,779 INFO L85 PathProgramCache]: Analyzing trace with hash -679288925, now seen corresponding path program 1 times [2024-11-03 01:11:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:11:04,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278136666] [2024-11-03 01:11:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:11:04,789 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:11:04,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:11:04,792 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 01:11:04,793 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 01:11:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:11:05,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 01:11:05,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:11:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-03 01:11:05,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:11:05,138 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-03 01:11:05,139 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:11:05,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278136666] [2024-11-03 01:11:05,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [278136666] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:11:05,140 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:11:05,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 01:11:05,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991584925] [2024-11-03 01:11:05,142 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:11:05,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 01:11:05,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:11:05,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 01:11:05,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 01:11:05,170 INFO L87 Difference]: Start difference. First operand has 42 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 01:11:05,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:11:05,195 INFO L93 Difference]: Finished difference Result 77 states and 123 transitions. [2024-11-03 01:11:05,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 01:11:05,198 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 84 [2024-11-03 01:11:05,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:11:05,204 INFO L225 Difference]: With dead ends: 77 [2024-11-03 01:11:05,206 INFO L226 Difference]: Without dead ends: 38 [2024-11-03 01:11:05,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 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 01:11:05,211 INFO L432 NwaCegarLoop]: 51 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, 51 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 01:11:05,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 01:11:05,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-03 01:11:05,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-03 01:11:05,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-03 01:11:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-11-03 01:11:05,248 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 84 [2024-11-03 01:11:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:11:05,248 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-03 01:11:05,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 01:11:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-03 01:11:05,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-03 01:11:05,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:11:05,251 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:05,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 01:11:05,452 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 01:11:05,453 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:11:05,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:11:05,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1081124375, now seen corresponding path program 1 times [2024-11-03 01:11:05,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:11:05,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860362725] [2024-11-03 01:11:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:11:05,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:11:05,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:11:05,457 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 01:11:05,458 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 01:11:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:11:05,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-03 01:11:05,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:11:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 228 proven. 63 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-03 01:11:16,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:11:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 01:11:24,325 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:11:24,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860362725] [2024-11-03 01:11:24,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1860362725] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 01:11:24,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 01:11:24,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [25] total 30 [2024-11-03 01:11:24,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221336379] [2024-11-03 01:11:24,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 01:11:24,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 01:11:24,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:11:24,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 01:11:24,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=706, Unknown=0, NotChecked=0, Total=870 [2024-11-03 01:11:24,329 INFO L87 Difference]: Start difference. First operand 38 states and 51 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 01:11:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:11:30,952 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2024-11-03 01:11:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 01:11:30,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 84 [2024-11-03 01:11:30,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:11:30,963 INFO L225 Difference]: With dead ends: 53 [2024-11-03 01:11:30,963 INFO L226 Difference]: Without dead ends: 51 [2024-11-03 01:11:30,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=176, Invalid=816, Unknown=0, NotChecked=0, Total=992 [2024-11-03 01:11:30,965 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 61 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-03 01:11:30,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 156 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-03 01:11:30,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-03 01:11:30,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2024-11-03 01:11:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-03 01:11:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2024-11-03 01:11:30,977 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 84 [2024-11-03 01:11:30,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:11:30,978 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-03 01:11:30,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 01:11:30,978 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2024-11-03 01:11:30,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-03 01:11:30,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:11:30,980 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:30,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-03 01:11:31,181 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 01:11:31,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:11:31,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:11:31,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1023866073, now seen corresponding path program 1 times [2024-11-03 01:11:31,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:11:31,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377861362] [2024-11-03 01:11:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:11:31,183 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:11:31,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:11:31,186 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 01:11:31,187 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 01:11:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:11:31,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 01:11:31,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:11:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 01:11:33,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:11:35,591 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 01:11:35,592 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:11:35,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377861362] [2024-11-03 01:11:35,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1377861362] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:11:35,592 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:11:35,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2024-11-03 01:11:35,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794605463] [2024-11-03 01:11:35,592 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:11:35,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 01:11:35,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:11:35,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 01:11:35,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-03 01:11:35,594 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 01:11:42,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:11:42,776 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2024-11-03 01:11:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 01:11:42,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 84 [2024-11-03 01:11:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:11:42,784 INFO L225 Difference]: With dead ends: 51 [2024-11-03 01:11:42,784 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 01:11:42,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 158 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-03 01:11:42,786 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-03 01:11:42,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 177 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-03 01:11:42,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 01:11:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 01:11:42,788 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 01:11:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 01:11:42,788 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2024-11-03 01:11:42,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:11:42,788 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 01:11:42,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 01:11:42,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 01:11:42,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 01:11:42,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 01:11:42,797 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 01:11:42,992 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 01:11:42,995 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 01:11:42,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 01:11:43,400 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 01:11:43,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:11:43 BoogieIcfgContainer [2024-11-03 01:11:43,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 01:11:43,419 INFO L158 Benchmark]: Toolchain (without parser) took 39686.90ms. Allocated memory is still 337.6MB. Free memory was 283.9MB in the beginning and 193.8MB in the end (delta: 90.0MB). Peak memory consumption was 90.6MB. Max. memory is 8.0GB. [2024-11-03 01:11:43,420 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 213.9MB. Free memory is still 162.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 01:11:43,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.78ms. Allocated memory is still 337.6MB. Free memory was 283.9MB in the beginning and 269.9MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 01:11:43,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.58ms. Allocated memory is still 337.6MB. Free memory was 269.9MB in the beginning and 267.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 01:11:43,424 INFO L158 Benchmark]: Boogie Preprocessor took 41.30ms. Allocated memory is still 337.6MB. Free memory was 267.9MB in the beginning and 265.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 01:11:43,424 INFO L158 Benchmark]: RCFGBuilder took 555.94ms. Allocated memory is still 337.6MB. Free memory was 265.6MB in the beginning and 303.8MB in the end (delta: -38.2MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. [2024-11-03 01:11:43,424 INFO L158 Benchmark]: TraceAbstraction took 38758.36ms. Allocated memory is still 337.6MB. Free memory was 303.3MB in the beginning and 193.8MB in the end (delta: 109.4MB). Peak memory consumption was 109.4MB. Max. memory is 8.0GB. [2024-11-03 01:11:43,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 213.9MB. Free memory is still 162.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 287.78ms. Allocated memory is still 337.6MB. Free memory was 283.9MB in the beginning and 269.9MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.58ms. Allocated memory is still 337.6MB. Free memory was 269.9MB in the beginning and 267.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.30ms. Allocated memory is still 337.6MB. Free memory was 267.9MB in the beginning and 265.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 555.94ms. Allocated memory is still 337.6MB. Free memory was 265.6MB in the beginning and 303.8MB in the end (delta: -38.2MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. * TraceAbstraction took 38758.36ms. Allocated memory is still 337.6MB. Free memory was 303.3MB in the beginning and 193.8MB in the end (delta: 109.4MB). Peak memory consumption was 109.4MB. 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.3s, OverallIterations: 3, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 8.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 384 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 236 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 147 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 148 mSDtfsCounter, 147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 502 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 20.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 498 ConstructedInterpolants, 0 QuantifiedInterpolants, 1666 SizeOfPredicates, 37 NumberOfNonLiveVariables, 412 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1809/1872 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: (var_1_10 == var_1_11) - 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_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))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) RESULT: Ultimate proved your program to be correct! [2024-11-03 01:11:43,487 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...