/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-69.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 01:09:22,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 01:09:22,862 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 01:09:22,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 01:09:22,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 01:09:22,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 01:09:22,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 01:09:22,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 01:09:22,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 01:09:22,893 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 01:09:22,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 01:09:22,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 01:09:22,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 01:09:22,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 01:09:22,896 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 01:09:22,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 01:09:22,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 01:09:22,900 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 01:09:22,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 01:09:22,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 01:09:22,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 01:09:22,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 01:09:22,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 01:09:22,901 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 01:09:22,901 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 01:09:22,902 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 01:09:22,902 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 01:09:22,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 01:09:22,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 01:09:22,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 01:09:22,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 01:09:22,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 01:09:22,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 01:09:22,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 01:09:22,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:09:22,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 01:09:22,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 01:09:22,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 01:09:22,906 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 01:09:22,906 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 01:09:22,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 01:09:22,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 01:09:22,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 01:09:22,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 01:09:22,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 01:09:23,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 01:09:23,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 01:09:23,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 01:09:23,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 01:09:23,133 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 01:09:23,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2024-11-03 01:09:24,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 01:09:24,731 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 01:09:24,732 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2024-11-03 01:09:24,738 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df378f37b/3aaccfe606564df985edf25114093815/FLAG6bbe56c1c [2024-11-03 01:09:24,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df378f37b/3aaccfe606564df985edf25114093815 [2024-11-03 01:09:24,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 01:09:24,754 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 01:09:24,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 01:09:24,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 01:09:24,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 01:09:24,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:09:24" (1/1) ... [2024-11-03 01:09:24,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556f8fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:24, skipping insertion in model container [2024-11-03 01:09:24,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:09:24" (1/1) ... [2024-11-03 01:09:24,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 01:09:24,948 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-69.i[915,928] [2024-11-03 01:09:24,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:09:24,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 01:09:24,992 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-69.i[915,928] [2024-11-03 01:09:25,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:09:25,025 INFO L204 MainTranslator]: Completed translation [2024-11-03 01:09:25,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25 WrapperNode [2024-11-03 01:09:25,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 01:09:25,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 01:09:25,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 01:09:25,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 01:09:25,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,057 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 76 [2024-11-03 01:09:25,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 01:09:25,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 01:09:25,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 01:09:25,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 01:09:25,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,088 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 01:09:25,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 01:09:25,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 01:09:25,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 01:09:25,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 01:09:25,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (1/1) ... [2024-11-03 01:09:25,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:09:25,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 01:09:25,142 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 01:09:25,145 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 01:09:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 01:09:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 01:09:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 01:09:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 01:09:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 01:09:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 01:09:25,256 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 01:09:25,258 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 01:09:25,473 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 01:09:25,473 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 01:09:25,488 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 01:09:25,489 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 01:09:25,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:09:25 BoogieIcfgContainer [2024-11-03 01:09:25,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 01:09:25,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 01:09:25,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 01:09:25,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 01:09:25,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:09:24" (1/3) ... [2024-11-03 01:09:25,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58cc0a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:09:25, skipping insertion in model container [2024-11-03 01:09:25,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:09:25" (2/3) ... [2024-11-03 01:09:25,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58cc0a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:09:25, skipping insertion in model container [2024-11-03 01:09:25,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:09:25" (3/3) ... [2024-11-03 01:09:25,499 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-69.i [2024-11-03 01:09:25,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 01:09:25,515 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 01:09:25,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 01:09:25,588 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;@af2344b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 01:09:25,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 01:09:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-03 01:09:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-03 01:09:25,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:09:25,605 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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 01:09:25,606 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:09:25,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:09:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1785575530, now seen corresponding path program 1 times [2024-11-03 01:09:25,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:09:25,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478230842] [2024-11-03 01:09:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:09:25,623 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:09:25,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:09:25,625 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 01:09:25,626 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 01:09:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:09:25,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 01:09:25,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:09:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-03 01:09:25,899 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:09:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-03 01:09:25,992 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:09:25,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478230842] [2024-11-03 01:09:25,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [478230842] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:09:25,997 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:09:25,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 01:09:25,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310799933] [2024-11-03 01:09:25,999 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:09:26,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 01:09:26,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:09:26,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 01:09:26,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 01:09:26,029 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-03 01:09:26,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:09:26,054 INFO L93 Difference]: Finished difference Result 69 states and 111 transitions. [2024-11-03 01:09:26,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 01:09:26,057 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 71 [2024-11-03 01:09:26,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:09:26,063 INFO L225 Difference]: With dead ends: 69 [2024-11-03 01:09:26,063 INFO L226 Difference]: Without dead ends: 34 [2024-11-03 01:09:26,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 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 01:09:26,073 INFO L432 NwaCegarLoop]: 45 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, 45 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 01:09:26,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 01:09:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-03 01:09:26,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-03 01:09:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-03 01:09:26,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2024-11-03 01:09:26,113 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 71 [2024-11-03 01:09:26,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:09:26,113 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2024-11-03 01:09:26,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-03 01:09:26,114 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-03 01:09:26,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-03 01:09:26,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:09:26,117 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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 01:09:26,122 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 01:09:26,318 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 01:09:26,319 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:09:26,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:09:26,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1097840993, now seen corresponding path program 1 times [2024-11-03 01:09:26,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:09:26,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492423777] [2024-11-03 01:09:26,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:09:26,320 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:09:26,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:09:26,323 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 01:09:26,324 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 01:09:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:09:26,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-03 01:09:26,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:09:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 170 proven. 27 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-03 01:09:28,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:09:30,680 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-03 01:09:30,681 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:09:30,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492423777] [2024-11-03 01:09:30,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1492423777] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 01:09:30,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 01:09:30,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2024-11-03 01:09:30,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197256483] [2024-11-03 01:09:30,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 01:09:30,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 01:09:30,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:09:30,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 01:09:30,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2024-11-03 01:09:30,687 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-03 01:09:31,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:09:31,002 INFO L93 Difference]: Finished difference Result 65 states and 85 transitions. [2024-11-03 01:09:31,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 01:09:31,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2024-11-03 01:09:31,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:09:31,005 INFO L225 Difference]: With dead ends: 65 [2024-11-03 01:09:31,005 INFO L226 Difference]: Without dead ends: 63 [2024-11-03 01:09:31,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2024-11-03 01:09:31,006 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 55 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 01:09:31,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 192 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 01:09:31,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-03 01:09:31,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2024-11-03 01:09:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-03 01:09:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions. [2024-11-03 01:09:31,028 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 72 [2024-11-03 01:09:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:09:31,028 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions. [2024-11-03 01:09:31,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-03 01:09:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2024-11-03 01:09:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-03 01:09:31,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:09:31,031 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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 01:09:31,037 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 01:09:31,232 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 01:09:31,233 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:09:31,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:09:31,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1095993951, now seen corresponding path program 1 times [2024-11-03 01:09:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:09:31,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343372628] [2024-11-03 01:09:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:09:31,234 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:09:31,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:09:31,239 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 01:09:31,241 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 01:09:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:09:31,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-03 01:09:31,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:09:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-03 01:09:33,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:09:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-03 01:09:34,398 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:09:34,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343372628] [2024-11-03 01:09:34,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [343372628] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:09:34,398 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:09:34,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2024-11-03 01:09:34,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326389563] [2024-11-03 01:09:34,399 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:09:34,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 01:09:34,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:09:34,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 01:09:34,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-03 01:09:34,404 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 01:09:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:09:35,325 INFO L93 Difference]: Finished difference Result 89 states and 117 transitions. [2024-11-03 01:09:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-03 01:09:35,325 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 72 [2024-11-03 01:09:35,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:09:35,326 INFO L225 Difference]: With dead ends: 89 [2024-11-03 01:09:35,326 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 01:09:35,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-11-03 01:09:35,330 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 89 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 01:09:35,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 218 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 01:09:35,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 01:09:35,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 01:09:35,331 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 01:09:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 01:09:35,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2024-11-03 01:09:35,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:09:35,332 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 01:09:35,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 01:09:35,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 01:09:35,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 01:09:35,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 01:09:35,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 01:09:35,535 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 01:09:35,539 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 01:09:35,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 01:09:36,556 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 01:09:36,571 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 01:09:36,572 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 01:09:36,572 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 01:09:36,572 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-03 01:09:36,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:09:36 BoogieIcfgContainer [2024-11-03 01:09:36,583 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 01:09:36,584 INFO L158 Benchmark]: Toolchain (without parser) took 11830.42ms. Allocated memory was 187.7MB in the beginning and 570.4MB in the end (delta: 382.7MB). Free memory was 132.4MB in the beginning and 232.3MB in the end (delta: -99.8MB). Peak memory consumption was 284.0MB. Max. memory is 8.0GB. [2024-11-03 01:09:36,584 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 187.7MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 01:09:36,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.63ms. Allocated memory is still 187.7MB. Free memory was 132.1MB in the beginning and 118.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 01:09:36,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.18ms. Allocated memory is still 187.7MB. Free memory was 118.4MB in the beginning and 116.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-03 01:09:36,585 INFO L158 Benchmark]: Boogie Preprocessor took 49.48ms. Allocated memory is still 187.7MB. Free memory was 116.7MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 01:09:36,586 INFO L158 Benchmark]: RCFGBuilder took 381.57ms. Allocated memory is still 187.7MB. Free memory was 114.2MB in the beginning and 101.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-03 01:09:36,586 INFO L158 Benchmark]: TraceAbstraction took 11090.62ms. Allocated memory was 187.7MB in the beginning and 570.4MB in the end (delta: 382.7MB). Free memory was 100.6MB in the beginning and 232.3MB in the end (delta: -131.6MB). Peak memory consumption was 251.5MB. Max. memory is 8.0GB. [2024-11-03 01:09:36,588 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 187.7MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 270.63ms. Allocated memory is still 187.7MB. Free memory was 132.1MB in the beginning and 118.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.18ms. Allocated memory is still 187.7MB. Free memory was 118.4MB in the beginning and 116.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.48ms. Allocated memory is still 187.7MB. Free memory was 116.7MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 381.57ms. Allocated memory is still 187.7MB. Free memory was 114.2MB in the beginning and 101.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 11090.62ms. Allocated memory was 187.7MB in the beginning and 570.4MB in the end (delta: 382.7MB). Free memory was 100.6MB in the beginning and 232.3MB in the end (delta: -131.6MB). Peak memory consumption was 251.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode * 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 164 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 455 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 308 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 425 IncrementalHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 147 mSDtfsCounter, 425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 434 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=2, InterpolantAutomatonStates: 26, 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, 7.1s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 1264 SizeOfPredicates, 30 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1293/1320 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: 70]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && (((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9)))) RESULT: Ultimate proved your program to be correct! [2024-11-03 01:09:36,621 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...