/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-32.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 21:45:45,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 21:45:45,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 21:45:45,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 21:45:45,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 21:45:45,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 21:45:45,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 21:45:45,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 21:45:45,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 21:45:45,884 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 21:45:45,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 21:45:45,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 21:45:45,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 21:45:45,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 21:45:45,887 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 21:45:45,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 21:45:45,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 21:45:45,888 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 21:45:45,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 21:45:45,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 21:45:45,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 21:45:45,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 21:45:45,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 21:45:45,894 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 21:45:45,894 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 21:45:45,894 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 21:45:45,894 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 21:45:45,895 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 21:45:45,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 21:45:45,895 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 21:45:45,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 21:45:45,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 21:45:45,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 21:45:45,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 21:45:45,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:45:45,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 21:45:45,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 21:45:45,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 21:45:45,898 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 21:45:45,898 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 21:45:45,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 21:45:45,899 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 21:45:45,899 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 21:45:45,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 21:45:45,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:46,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 21:45:46,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 21:45:46,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 21:45:46,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 21:45:46,139 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 21:45:46,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-32.i [2024-11-02 21:45:47,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 21:45:47,676 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 21:45:47,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-32.i [2024-11-02 21:45:47,685 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0574c0ac6/cceed1ad387e4a34a1fd0abd1b6f359b/FLAG36eb7229d [2024-11-02 21:45:47,697 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0574c0ac6/cceed1ad387e4a34a1fd0abd1b6f359b [2024-11-02 21:45:47,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 21:45:47,700 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 21:45:47,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 21:45:47,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 21:45:47,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 21:45:47,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:47,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7797a887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47, skipping insertion in model container [2024-11-02 21:45:47,709 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:47,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 21:45:47,881 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-32.i[915,928] [2024-11-02 21:45:47,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:45:47,925 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 21:45:47,934 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-32.i[915,928] [2024-11-02 21:45:47,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:45:47,970 INFO L204 MainTranslator]: Completed translation [2024-11-02 21:45:47,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47 WrapperNode [2024-11-02 21:45:47,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 21:45:47,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 21:45:47,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 21:45:47,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 21:45:47,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:47,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:47,998 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 66 [2024-11-02 21:45:47,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 21:45:47,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 21:45:47,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 21:45:47,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 21:45:48,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,009 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,020 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]. [2024-11-02 21:45:48,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 21:45:48,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 21:45:48,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 21:45:48,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 21:45:48,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (1/1) ... [2024-11-02 21:45:48,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:45:48,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:45:48,071 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) [2024-11-02 21:45:48,073 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 [2024-11-02 21:45:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 21:45:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 21:45:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 21:45:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 21:45:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 21:45:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 21:45:48,149 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 21:45:48,151 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 21:45:48,272 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 21:45:48,273 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 21:45:48,284 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 21:45:48,284 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 21:45:48,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:45:48 BoogieIcfgContainer [2024-11-02 21:45:48,284 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 21:45:48,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 21:45:48,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 21:45:48,289 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 21:45:48,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:45:47" (1/3) ... [2024-11-02 21:45:48,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d37a45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:45:48, skipping insertion in model container [2024-11-02 21:45:48,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:45:47" (2/3) ... [2024-11-02 21:45:48,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d37a45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:45:48, skipping insertion in model container [2024-11-02 21:45:48,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:45:48" (3/3) ... [2024-11-02 21:45:48,291 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-32.i [2024-11-02 21:45:48,311 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 21:45:48,312 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 21:45:48,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 21:45:48,385 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;@6d1d7cca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 21:45:48,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 21:45:48,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-02 21:45:48,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-02 21:45:48,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:45:48,396 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2024-11-02 21:45:48,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:45:48,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:45:48,400 INFO L85 PathProgramCache]: Analyzing trace with hash 176991990, now seen corresponding path program 1 times [2024-11-02 21:45:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:45:48,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197441957] [2024-11-02 21:45:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:45:48,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:48,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:45:48,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:45:48,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 21:45:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:45:48,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 21:45:48,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:45:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-02 21:45:48,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:45:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-02 21:45:48,590 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:45:48,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197441957] [2024-11-02 21:45:48,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [197441957] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:45:48,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:45:48,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-02 21:45:48,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442923917] [2024-11-02 21:45:48,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:45:48,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 21:45:48,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:45:48,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 21:45:48,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:45:48,626 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-02 21:45:48,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:45:48,647 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2024-11-02 21:45:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 21:45:48,650 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-11-02 21:45:48,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:45:48,655 INFO L225 Difference]: With dead ends: 57 [2024-11-02 21:45:48,656 INFO L226 Difference]: Without dead ends: 28 [2024-11-02 21:45:48,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:45:48,661 INFO L432 NwaCegarLoop]: 35 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, 35 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 [2024-11-02 21:45:48,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:45:48,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-02 21:45:48,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-02 21:45:48,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-02 21:45:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-11-02 21:45:48,692 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2024-11-02 21:45:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:45:48,693 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-02 21:45:48,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-02 21:45:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-02 21:45:48,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-02 21:45:48,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:45:48,695 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2024-11-02 21:45:48,715 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 21:45:48,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:48,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:45:48,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:45:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash -801961800, now seen corresponding path program 1 times [2024-11-02 21:45:48,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:45:48,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539735176] [2024-11-02 21:45:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:45:48,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:45:48,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:45:48,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:45:48,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 21:45:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:45:49,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 21:45:49,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:45:57,923 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-02 21:45:57,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:46:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-02 21:46:10,616 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:46:10,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539735176] [2024-11-02 21:46:10,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [539735176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 21:46:10,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 21:46:10,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-02 21:46:10,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101323090] [2024-11-02 21:46:10,617 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 21:46:10,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-02 21:46:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:46:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-02 21:46:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-02 21:46:10,620 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-02 21:46:14,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:46:14,494 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2024-11-02 21:46:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-02 21:46:14,495 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 50 [2024-11-02 21:46:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:46:14,496 INFO L225 Difference]: With dead ends: 57 [2024-11-02 21:46:14,496 INFO L226 Difference]: Without dead ends: 55 [2024-11-02 21:46:14,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2024-11-02 21:46:14,498 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 117 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-02 21:46:14,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 140 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-02 21:46:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-02 21:46:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2024-11-02 21:46:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.0625) internal successors, (34), 33 states have internal predecessors, (34), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-02 21:46:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2024-11-02 21:46:14,525 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 50 [2024-11-02 21:46:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:46:14,527 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2024-11-02 21:46:14,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-02 21:46:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2024-11-02 21:46:14,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-02 21:46:14,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:46:14,530 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2024-11-02 21:46:14,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 21:46:14,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:14,731 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:46:14,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:46:14,732 INFO L85 PathProgramCache]: Analyzing trace with hash -859220102, now seen corresponding path program 1 times [2024-11-02 21:46:14,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:46:14,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990391804] [2024-11-02 21:46:14,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:46:14,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:14,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:46:14,734 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:46:14,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 21:46:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:46:14,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 21:46:14,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:46:23,650 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-02 21:46:23,650 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:46:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-02 21:46:27,328 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:46:27,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990391804] [2024-11-02 21:46:27,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [990391804] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 21:46:27,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 21:46:27,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-02 21:46:27,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465022985] [2024-11-02 21:46:27,329 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 21:46:27,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-02 21:46:27,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:46:27,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-02 21:46:27,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-02 21:46:27,331 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-02 21:46:29,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:46:29,589 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2024-11-02 21:46:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-02 21:46:29,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 50 [2024-11-02 21:46:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:46:29,590 INFO L225 Difference]: With dead ends: 64 [2024-11-02 21:46:29,590 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 21:46:29,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=279, Invalid=777, Unknown=0, NotChecked=0, Total=1056 [2024-11-02 21:46:29,592 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 96 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-02 21:46:29,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 218 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-02 21:46:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 21:46:29,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 21:46:29,594 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) [2024-11-02 21:46:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 21:46:29,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2024-11-02 21:46:29,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:46:29,594 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 21:46:29,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-02 21:46:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 21:46:29,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 21:46:29,599 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 21:46:29,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 21:46:29,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:46:29,804 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 21:46:29,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 21:46:31,157 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 21:46:31,167 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-02 21:46:31,167 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-02 21:46:31,167 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-02 21:46:31,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:46:31 BoogieIcfgContainer [2024-11-02 21:46:31,174 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 21:46:31,175 INFO L158 Benchmark]: Toolchain (without parser) took 43474.79ms. Allocated memory was 186.6MB in the beginning and 887.1MB in the end (delta: 700.4MB). Free memory was 153.4MB in the beginning and 838.0MB in the end (delta: -684.6MB). Peak memory consumption was 526.9MB. Max. memory is 8.0GB. [2024-11-02 21:46:31,175 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 186.6MB. Free memory is still 142.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 21:46:31,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.25ms. Allocated memory is still 186.6MB. Free memory was 153.0MB in the beginning and 139.4MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-02 21:46:31,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.76ms. Allocated memory is still 186.6MB. Free memory was 139.4MB in the beginning and 137.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:46:31,176 INFO L158 Benchmark]: Boogie Preprocessor took 41.85ms. Allocated memory is still 186.6MB. Free memory was 137.7MB in the beginning and 135.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:46:31,177 INFO L158 Benchmark]: RCFGBuilder took 243.41ms. Allocated memory is still 186.6MB. Free memory was 135.2MB in the beginning and 123.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-02 21:46:31,177 INFO L158 Benchmark]: TraceAbstraction took 42888.30ms. Allocated memory was 186.6MB in the beginning and 887.1MB in the end (delta: 700.4MB). Free memory was 122.3MB in the beginning and 838.0MB in the end (delta: -715.7MB). Peak memory consumption was 496.5MB. Max. memory is 8.0GB. [2024-11-02 21:46:31,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 186.6MB. Free memory is still 142.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 269.25ms. Allocated memory is still 186.6MB. Free memory was 153.0MB in the beginning and 139.4MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.76ms. Allocated memory is still 186.6MB. Free memory was 139.4MB in the beginning and 137.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.85ms. Allocated memory is still 186.6MB. Free memory was 137.7MB in the beginning and 135.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 243.41ms. Allocated memory is still 186.6MB. Free memory was 135.2MB in the beginning and 123.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 42888.30ms. Allocated memory was 186.6MB in the beginning and 887.1MB in the end (delta: 700.4MB). Free memory was 122.3MB in the beginning and 838.0MB in the end (delta: -715.7MB). Peak memory consumption was 496.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.4s, OverallIterations: 3, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 393 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 294 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 453 IncrementalHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 99 mSDtfsCounter, 453 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=2, InterpolantAutomatonStates: 42, 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 34.2s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 294 ConstructedInterpolants, 33 QuantifiedInterpolants, 7409 SizeOfPredicates, 26 NumberOfNonLiveVariables, 265 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 438/504 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((var_1_9 == var_1_10) || (var_1_2 != 0)) - 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_2 == \old(var_1_2))) && (var_1_5 == \old(var_1_5))) && (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)))) RESULT: Ultimate proved your program to be correct! [2024-11-02 21:46:31,290 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...