/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-58.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:43:41,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:43:41,450 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 12:43:41,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:43:41,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:43:41,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:43:41,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:43:41,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:43:41,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:43:41,474 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:43:41,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:43:41,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:43:41,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:43:41,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:43:41,475 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:43:41,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:43:41,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:43:41,476 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:43:41,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:43:41,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:43:41,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:43:41,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:43:41,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:43:41,479 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:43:41,479 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:43:41,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:43:41,479 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:43:41,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:43:41,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:43:41,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:43:41,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:43:41,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:43:41,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:43:41,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:43:41,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:43:41,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:43:41,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:43:41,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:43:41,483 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:43:41,483 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:43:41,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:43:41,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:43:41,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:43:41,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:43:41,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:43:41,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:43:41,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:43:41,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:43:41,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:43:41,748 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:43:41,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-58.i [2024-11-03 12:43:43,106 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:43:43,270 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:43:43,271 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-58.i [2024-11-03 12:43:43,277 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11d20e00d/f8a554bf3b5f4b5bbdd987f994b6bf02/FLAGa2ea47117 [2024-11-03 12:43:43,672 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11d20e00d/f8a554bf3b5f4b5bbdd987f994b6bf02 [2024-11-03 12:43:43,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:43:43,676 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:43:43,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:43:43,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:43:43,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:43:43,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:43:43" (1/1) ... [2024-11-03 12:43:43,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e12cbb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:43, skipping insertion in model container [2024-11-03 12:43:43,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:43:43" (1/1) ... [2024-11-03 12:43:43,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:43:43,891 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-58.i[915,928] [2024-11-03 12:43:43,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:43:43,968 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:43:43,981 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-58.i[915,928] [2024-11-03 12:43:43,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:43:44,016 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:43:44,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44 WrapperNode [2024-11-03 12:43:44,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:43:44,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:43:44,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:43:44,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:43:44,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,056 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 87 [2024-11-03 12:43:44,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:43:44,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:43:44,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:43:44,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:43:44,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,075 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,085 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 12:43:44,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:43:44,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:43:44,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:43:44,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:43:44,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (1/1) ... [2024-11-03 12:43:44,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:43:44,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:43:44,135 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 12:43:44,138 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 12:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:43:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:43:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:43:44,224 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:43:44,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:43:44,424 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 12:43:44,424 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:43:44,439 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:43:44,439 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:43:44,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:43:44 BoogieIcfgContainer [2024-11-03 12:43:44,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:43:44,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:43:44,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:43:44,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:43:44,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:43:43" (1/3) ... [2024-11-03 12:43:44,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368b956f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:43:44, skipping insertion in model container [2024-11-03 12:43:44,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:43:44" (2/3) ... [2024-11-03 12:43:44,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368b956f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:43:44, skipping insertion in model container [2024-11-03 12:43:44,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:43:44" (3/3) ... [2024-11-03 12:43:44,448 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-58.i [2024-11-03 12:43:44,466 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:43:44,466 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:43:44,527 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:43:44,535 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;@75c96933, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:43:44,536 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:43:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-03 12:43:44,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-03 12:43:44,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:43:44,550 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:43:44,550 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:43:44,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:43:44,556 INFO L85 PathProgramCache]: Analyzing trace with hash 231146968, now seen corresponding path program 1 times [2024-11-03 12:43:44,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:43:44,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162521320] [2024-11-03 12:43:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:43:44,566 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:43:44,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:43:44,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:43:44,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:43:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:43:44,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:43:44,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:43:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-03 12:43:44,743 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:43:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-03 12:43:44,856 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:43:44,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162521320] [2024-11-03 12:43:44,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [162521320] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:43:44,857 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:43:44,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:43:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093151062] [2024-11-03 12:43:44,860 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:43:44,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:43:44,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:43:44,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:43:44,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:43:44,890 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 12:43:44,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:43:44,910 INFO L93 Difference]: Finished difference Result 83 states and 138 transitions. [2024-11-03 12:43:44,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:43:44,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2024-11-03 12:43:44,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:43:44,919 INFO L225 Difference]: With dead ends: 83 [2024-11-03 12:43:44,919 INFO L226 Difference]: Without dead ends: 41 [2024-11-03 12:43:44,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 196 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 12:43:44,925 INFO L432 NwaCegarLoop]: 57 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, 57 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 12:43:44,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:43:44,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-03 12:43:44,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-03 12:43:44,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-03 12:43:44,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2024-11-03 12:43:44,967 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 99 [2024-11-03 12:43:44,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:43:44,967 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2024-11-03 12:43:44,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 12:43:44,968 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-11-03 12:43:44,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-03 12:43:44,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:43:44,971 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:43:44,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 12:43:45,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:43:45,173 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:43:45,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:43:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1071897128, now seen corresponding path program 1 times [2024-11-03 12:43:45,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:43:45,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501752055] [2024-11-03 12:43:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:43:45,175 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:43:45,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:43:45,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:43:45,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:43:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:43:45,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-03 12:43:45,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:43:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 334 proven. 48 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-03 12:43:48,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:43:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-03 12:43:48,633 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:43:48,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501752055] [2024-11-03 12:43:48,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [501752055] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 12:43:48,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 12:43:48,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 22 [2024-11-03 12:43:48,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426688781] [2024-11-03 12:43:48,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 12:43:48,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:43:48,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:43:48,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:43:48,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2024-11-03 12:43:48,637 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 12:43:48,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:43:48,963 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-11-03 12:43:48,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 12:43:48,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2024-11-03 12:43:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:43:48,966 INFO L225 Difference]: With dead ends: 57 [2024-11-03 12:43:48,966 INFO L226 Difference]: Without dead ends: 55 [2024-11-03 12:43:48,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-11-03 12:43:48,967 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 13 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 12:43:48,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 270 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 12:43:48,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-03 12:43:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-11-03 12:43:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 34 states have internal predecessors, (35), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-03 12:43:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2024-11-03 12:43:48,980 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 99 [2024-11-03 12:43:48,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:43:48,981 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2024-11-03 12:43:48,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 12:43:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2024-11-03 12:43:48,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-03 12:43:48,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:43:48,983 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:43:48,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:43:49,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:43:49,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:43:49,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:43:49,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1014638826, now seen corresponding path program 1 times [2024-11-03 12:43:49,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:43:49,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468122916] [2024-11-03 12:43:49,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:43:49,187 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:43:49,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:43:49,189 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:43:49,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:43:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:43:49,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-03 12:43:49,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:43:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 334 proven. 48 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-03 12:43:51,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:43:52,572 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-03 12:43:52,572 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:43:52,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468122916] [2024-11-03 12:43:52,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [468122916] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 12:43:52,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 12:43:52,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 23 [2024-11-03 12:43:52,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828681635] [2024-11-03 12:43:52,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 12:43:52,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:43:52,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:43:52,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:43:52,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-03 12:43:52,578 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 12:43:52,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:43:52,858 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2024-11-03 12:43:52,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 12:43:52,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2024-11-03 12:43:52,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:43:52,860 INFO L225 Difference]: With dead ends: 56 [2024-11-03 12:43:52,860 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 12:43:52,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-11-03 12:43:52,862 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 10 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 12:43:52,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 209 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 12:43:52,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 12:43:52,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 12:43:52,863 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 12:43:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 12:43:52,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2024-11-03 12:43:52,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:43:52,864 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 12:43:52,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-03 12:43:52,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 12:43:52,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 12:43:52,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 12:43:52,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-03 12:43:53,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:43:53,072 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 12:43:53,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 12:43:53,132 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 12:43:53,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 12:43:53 BoogieIcfgContainer [2024-11-03 12:43:53,146 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 12:43:53,147 INFO L158 Benchmark]: Toolchain (without parser) took 9471.51ms. Allocated memory was 238.0MB in the beginning and 463.5MB in the end (delta: 225.4MB). Free memory was 173.0MB in the beginning and 273.9MB in the end (delta: -100.9MB). Peak memory consumption was 126.5MB. Max. memory is 8.0GB. [2024-11-03 12:43:53,147 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 238.0MB. Free memory is still 190.3MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 12:43:53,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.93ms. Allocated memory was 238.0MB in the beginning and 320.9MB in the end (delta: 82.8MB). Free memory was 172.8MB in the beginning and 287.2MB in the end (delta: -114.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2024-11-03 12:43:53,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.15ms. Allocated memory is still 320.9MB. Free memory was 287.2MB in the beginning and 285.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 12:43:53,148 INFO L158 Benchmark]: Boogie Preprocessor took 43.28ms. Allocated memory is still 320.9MB. Free memory was 285.1MB in the beginning and 283.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 12:43:53,149 INFO L158 Benchmark]: RCFGBuilder took 338.97ms. Allocated memory is still 320.9MB. Free memory was 283.0MB in the beginning and 268.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 12:43:53,149 INFO L158 Benchmark]: TraceAbstraction took 8704.37ms. Allocated memory was 320.9MB in the beginning and 463.5MB in the end (delta: 142.6MB). Free memory was 267.8MB in the beginning and 273.9MB in the end (delta: -6.1MB). Peak memory consumption was 137.0MB. Max. memory is 8.0GB. [2024-11-03 12:43:53,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 238.0MB. Free memory is still 190.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 341.93ms. Allocated memory was 238.0MB in the beginning and 320.9MB in the end (delta: 82.8MB). Free memory was 172.8MB in the beginning and 287.2MB in the end (delta: -114.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.15ms. Allocated memory is still 320.9MB. Free memory was 287.2MB in the beginning and 285.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.28ms. Allocated memory is still 320.9MB. Free memory was 285.1MB in the beginning and 283.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 338.97ms. Allocated memory is still 320.9MB. Free memory was 283.0MB in the beginning and 268.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 8704.37ms. Allocated memory was 320.9MB in the beginning and 463.5MB in the end (delta: 142.6MB). Free memory was 267.8MB in the beginning and 273.9MB in the end (delta: -6.1MB). Peak memory consumption was 137.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 3, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 536 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 357 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 179 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 592 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 588 ConstructedInterpolants, 2 QuantifiedInterpolants, 2381 SizeOfPredicates, 31 NumberOfNonLiveVariables, 470 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2784/2880 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: 75]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) RESULT: Ultimate proved your program to be correct! [2024-11-03 12:43:53,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...