/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-7.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:17:31,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:17:31,310 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 08:17:31,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:17:31,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:17:31,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:17:31,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:17:31,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:17:31,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:17:31,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:17:31,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:17:31,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:17:31,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:17:31,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:17:31,353 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:17:31,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:17:31,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:17:31,354 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:17:31,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:17:31,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:17:31,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:17:31,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:17:31,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:17:31,360 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:17:31,360 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:17:31,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:17:31,360 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:17:31,361 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:17:31,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:17:31,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:17:31,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:17:31,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:17:31,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:17:31,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:17:31,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:17:31,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:17:31,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:17:31,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:17:31,364 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:17:31,364 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:17:31,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:17:31,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:17:31,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:17:31,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:17:31,365 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:17:31,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:17:31,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:17:31,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:17:31,626 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:17:31,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:17:31,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-7.i [2024-11-06 08:17:33,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:17:33,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:17:33,390 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-7.i [2024-11-06 08:17:33,397 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c120e5c/0f17e14130ff4aed887faca97b974d69/FLAG8f2d669a2 [2024-11-06 08:17:33,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c120e5c/0f17e14130ff4aed887faca97b974d69 [2024-11-06 08:17:33,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:17:33,415 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:17:33,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:17:33,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:17:33,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:17:33,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b244b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33, skipping insertion in model container [2024-11-06 08:17:33,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,445 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:17:33,607 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-7.i[914,927] [2024-11-06 08:17:33,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:17:33,654 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:17:33,670 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-7.i[914,927] [2024-11-06 08:17:33,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:17:33,719 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:17:33,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33 WrapperNode [2024-11-06 08:17:33,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:17:33,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:17:33,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:17:33,724 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:17:33,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,764 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2024-11-06 08:17:33,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:17:33,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:17:33,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:17:33,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:17:33,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,804 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]. [2024-11-06 08:17:33,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,821 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:17:33,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:17:33,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:17:33,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:17:33,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (1/1) ... [2024-11-06 08:17:33,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:17:33,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:17:33,863 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) [2024-11-06 08:17:33,870 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 [2024-11-06 08:17:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:17:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:17:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:17:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:17:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:17:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:17:33,984 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:17:33,986 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:17:34,336 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-06 08:17:34,337 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:17:34,353 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:17:34,355 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:17:34,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:17:34 BoogieIcfgContainer [2024-11-06 08:17:34,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:17:34,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:17:34,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:17:34,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:17:34,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:17:33" (1/3) ... [2024-11-06 08:17:34,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1aaf0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:17:34, skipping insertion in model container [2024-11-06 08:17:34,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:17:33" (2/3) ... [2024-11-06 08:17:34,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1aaf0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:17:34, skipping insertion in model container [2024-11-06 08:17:34,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:17:34" (3/3) ... [2024-11-06 08:17:34,365 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-7.i [2024-11-06 08:17:34,382 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:17:34,383 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:17:34,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:17:34,463 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;@318bc1c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:17:34,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:17:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 27 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-06 08:17:34,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-06 08:17:34,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:17:34,483 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1] [2024-11-06 08:17:34,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:17:34,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:17:34,490 INFO L85 PathProgramCache]: Analyzing trace with hash -449949024, now seen corresponding path program 1 times [2024-11-06 08:17:34,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:17:34,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044577440] [2024-11-06 08:17:34,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:17:34,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:17:34,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:17:34,514 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) [2024-11-06 08:17:34,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 08:17:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:17:34,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-06 08:17:34,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:17:36,259 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-06 08:17:36,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:17:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-06 08:17:39,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:17:39,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044577440] [2024-11-06 08:17:39,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044577440] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 08:17:39,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 08:17:39,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2024-11-06 08:17:39,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805585019] [2024-11-06 08:17:39,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:17:39,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 08:17:39,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:17:39,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 08:17:39,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-06 08:17:39,230 INFO L87 Difference]: Start difference. First operand has 47 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 27 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 08:17:42,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:17:42,355 INFO L93 Difference]: Finished difference Result 93 states and 159 transitions. [2024-11-06 08:17:42,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 08:17:42,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 108 [2024-11-06 08:17:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:17:42,375 INFO L225 Difference]: With dead ends: 93 [2024-11-06 08:17:42,375 INFO L226 Difference]: Without dead ends: 49 [2024-11-06 08:17:42,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-06 08:17:42,381 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 5 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-06 08:17:42,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 266 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-06 08:17:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-06 08:17:42,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2024-11-06 08:17:42,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-06 08:17:42,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2024-11-06 08:17:42,414 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 108 [2024-11-06 08:17:42,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:17:42,416 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2024-11-06 08:17:42,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 08:17:42,417 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2024-11-06 08:17:42,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-06 08:17:42,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:17:42,419 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1] [2024-11-06 08:17:42,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 08:17:42,620 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 [2024-11-06 08:17:42,621 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:17:42,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:17:42,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1299078176, now seen corresponding path program 1 times [2024-11-06 08:17:42,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:17:42,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8419623] [2024-11-06 08:17:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:17:42,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:17:42,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:17:42,627 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) [2024-11-06 08:17:42,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 08:17:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:17:42,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-06 08:17:42,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:17:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-06 08:17:44,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:17:52,986 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-06 08:17:52,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:17:52,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8419623] [2024-11-06 08:17:52,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8419623] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 08:17:52,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 08:17:52,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-06 08:17:52,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122169051] [2024-11-06 08:17:52,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:17:52,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 08:17:52,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:17:52,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 08:17:53,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-06 08:17:53,000 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 08:17:57,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-06 08:18:03,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:18:03,836 INFO L93 Difference]: Finished difference Result 54 states and 73 transitions. [2024-11-06 08:18:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 08:18:03,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2024-11-06 08:18:03,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:18:03,844 INFO L225 Difference]: With dead ends: 54 [2024-11-06 08:18:03,844 INFO L226 Difference]: Without dead ends: 52 [2024-11-06 08:18:03,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-06 08:18:03,846 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 7 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-06 08:18:03,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 289 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-06 08:18:03,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-06 08:18:03,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2024-11-06 08:18:03,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-06 08:18:03,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2024-11-06 08:18:03,856 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 109 [2024-11-06 08:18:03,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:18:03,857 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2024-11-06 08:18:03,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 08:18:03,857 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2024-11-06 08:18:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-06 08:18:03,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:18:03,859 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1] [2024-11-06 08:18:03,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-06 08:18:04,063 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 [2024-11-06 08:18:04,064 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:18:04,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:18:04,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1297231134, now seen corresponding path program 1 times [2024-11-06 08:18:04,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:18:04,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [743531034] [2024-11-06 08:18:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:18:04,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:18:04,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:18:04,068 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) [2024-11-06 08:18:04,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 08:18:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:18:04,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-06 08:18:04,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:18:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-06 08:18:06,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:18:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-06 08:18:14,840 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:18:14,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743531034] [2024-11-06 08:18:14,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743531034] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 08:18:14,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 08:18:14,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-06 08:18:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935693103] [2024-11-06 08:18:14,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:18:14,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 08:18:14,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:18:14,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 08:18:14,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-06 08:18:14,843 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 08:18:25,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:18:25,591 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2024-11-06 08:18:25,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-06 08:18:25,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2024-11-06 08:18:25,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:18:25,598 INFO L225 Difference]: With dead ends: 51 [2024-11-06 08:18:25,598 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 08:18:25,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-06 08:18:25,600 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 11 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-06 08:18:25,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 277 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-06 08:18:25,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 08:18:25,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 08:18:25,602 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) [2024-11-06 08:18:25,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 08:18:25,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2024-11-06 08:18:25,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:18:25,602 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 08:18:25,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-06 08:18:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 08:18:25,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 08:18:25,606 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 08:18:25,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 08:18:25,806 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 [2024-11-06 08:18:25,810 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-06 08:18:25,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 08:18:25,841 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 08:18:25,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:18:25 BoogieIcfgContainer [2024-11-06 08:18:25,857 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 08:18:25,858 INFO L158 Benchmark]: Toolchain (without parser) took 52442.77ms. Allocated memory was 200.3MB in the beginning and 364.9MB in the end (delta: 164.6MB). Free memory was 151.0MB in the beginning and 332.6MB in the end (delta: -181.6MB). Peak memory consumption was 195.4MB. Max. memory is 8.0GB. [2024-11-06 08:18:25,858 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 200.3MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-06 08:18:25,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.49ms. Allocated memory is still 200.3MB. Free memory was 151.0MB in the beginning and 137.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-06 08:18:25,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.81ms. Allocated memory is still 200.3MB. Free memory was 137.0MB in the beginning and 135.2MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-06 08:18:25,859 INFO L158 Benchmark]: Boogie Preprocessor took 57.80ms. Allocated memory is still 200.3MB. Free memory was 135.2MB in the beginning and 132.8MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-06 08:18:25,859 INFO L158 Benchmark]: RCFGBuilder took 531.94ms. Allocated memory is still 200.3MB. Free memory was 132.8MB in the beginning and 118.8MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-06 08:18:25,859 INFO L158 Benchmark]: TraceAbstraction took 51498.88ms. Allocated memory was 200.3MB in the beginning and 364.9MB in the end (delta: 164.6MB). Free memory was 118.1MB in the beginning and 332.6MB in the end (delta: -214.5MB). Peak memory consumption was 161.9MB. Max. memory is 8.0GB. [2024-11-06 08:18:25,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 200.3MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 306.49ms. Allocated memory is still 200.3MB. Free memory was 151.0MB in the beginning and 137.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.81ms. Allocated memory is still 200.3MB. Free memory was 137.0MB in the beginning and 135.2MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.80ms. Allocated memory is still 200.3MB. Free memory was 135.2MB in the beginning and 132.8MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 531.94ms. Allocated memory is still 200.3MB. Free memory was 132.8MB in the beginning and 118.8MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 51498.88ms. Allocated memory was 200.3MB in the beginning and 364.9MB in the end (delta: 164.6MB). Free memory was 118.1MB in the beginning and 332.6MB in the end (delta: -214.5MB). Peak memory consumption was 161.9MB. 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.4s, OverallIterations: 3, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 13.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 832 SdHoareTripleChecker+Invalid, 11.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 657 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 238 IncrementalHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 175 mSDtfsCounter, 238 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 654 GetRequests, 613 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 25.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 25.3s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 646 ConstructedInterpolants, 5 QuantifiedInterpolants, 1220 SizeOfPredicates, 45 NumberOfNonLiveVariables, 513 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 3519/3672 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: 83]: 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))) RESULT: Ultimate proved your program to be correct! [2024-11-06 08:18:25,961 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...