/usr/lib/jvm/java-1.11.0-openjdk-amd64/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 -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:09:14,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:09:14,761 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 15:09:14,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:09:14,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:09:14,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:09:14,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:09:14,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:09:14,786 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:09:14,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:09:14,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:09:14,789 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:09:14,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:09:14,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:09:14,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:09:14,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:09:14,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:09:14,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:09:14,790 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:09:14,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:09:14,791 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:09:14,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:09:14,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:09:14,792 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:09:14,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:09:14,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:09:14,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:09:14,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:09:14,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:09:14,792 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:09:14,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:09:14,793 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:09:14,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:09:14,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:09:14,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:09:14,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:09:14,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:09:14,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:09:14,984 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:09:14,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2023-12-09 15:09:15,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:09:16,037 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:09:16,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2023-12-09 15:09:16,043 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f91b92ac8/e8816ec80f6b4c299eb3a8fc82103468/FLAG5b1110ddd [2023-12-09 15:09:16,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f91b92ac8/e8816ec80f6b4c299eb3a8fc82103468 [2023-12-09 15:09:16,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:09:16,058 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:09:16,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:09:16,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:09:16,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:09:16,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e593f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16, skipping insertion in model container [2023-12-09 15:09:16,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,084 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:09:16,189 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[3012,3025] [2023-12-09 15:09:16,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:09:16,205 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:09:16,227 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[3012,3025] [2023-12-09 15:09:16,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:09:16,236 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:09:16,236 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:09:16,240 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:09:16,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16 WrapperNode [2023-12-09 15:09:16,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:09:16,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:09:16,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:09:16,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:09:16,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,276 INFO L138 Inliner]: procedures = 22, calls = 35, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 263 [2023-12-09 15:09:16,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:09:16,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:09:16,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:09:16,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:09:16,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:09:16,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:09:16,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:09:16,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:09:16,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (1/1) ... [2023-12-09 15:09:16,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:09:16,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:09:16,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 15:09:16,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 15:09:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:09:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:09:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:09:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:09:16,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:09:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:09:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:09:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:09:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:09:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:09:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:09:16,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:09:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:09:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:09:16,365 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:09:16,463 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:09:16,464 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:09:16,829 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:09:17,120 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:09:17,121 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:09:17,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:17 BoogieIcfgContainer [2023-12-09 15:09:17,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:09:17,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:09:17,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:09:17,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:09:17,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:09:16" (1/3) ... [2023-12-09 15:09:17,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c021517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:17, skipping insertion in model container [2023-12-09 15:09:17,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:16" (2/3) ... [2023-12-09 15:09:17,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c021517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:17, skipping insertion in model container [2023-12-09 15:09:17,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:17" (3/3) ... [2023-12-09 15:09:17,129 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2023-12-09 15:09:17,141 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:09:17,141 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:09:17,141 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:09:17,200 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:09:17,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 122 transitions, 258 flow [2023-12-09 15:09:17,283 INFO L124 PetriNetUnfolderBase]: 3/120 cut-off events. [2023-12-09 15:09:17,284 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:09:17,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 120 events. 3/120 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2023-12-09 15:09:17,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 122 transitions, 258 flow [2023-12-09 15:09:17,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 111 transitions, 234 flow [2023-12-09 15:09:17,304 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:09:17,309 INFO L362 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, mHoare=true, 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;@5eb603f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:09:17,310 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:09:17,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:09:17,326 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2023-12-09 15:09:17,326 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:09:17,326 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:17,327 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:17,327 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:17,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:17,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2061380334, now seen corresponding path program 1 times [2023-12-09 15:09:17,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:17,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247237858] [2023-12-09 15:09:17,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:17,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:20,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:20,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:20,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247237858] [2023-12-09 15:09:20,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247237858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:20,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:20,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-09 15:09:20,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930401152] [2023-12-09 15:09:20,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:20,295 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-09 15:09:20,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:20,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-09 15:09:20,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-09 15:09:20,323 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 122 [2023-12-09 15:09:20,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 234 flow. Second operand has 12 states, 12 states have (on average 74.66666666666667) internal successors, (896), 12 states have internal predecessors, (896), 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) [2023-12-09 15:09:20,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:20,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 122 [2023-12-09 15:09:20,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:21,210 INFO L124 PetriNetUnfolderBase]: 2/147 cut-off events. [2023-12-09 15:09:21,210 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-12-09 15:09:21,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 147 events. 2/147 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 128 event pairs, 0 based on Foata normal form. 6/148 useless extension candidates. Maximal degree in co-relation 40. Up to 25 conditions per place. [2023-12-09 15:09:21,213 INFO L140 encePairwiseOnDemand]: 105/122 looper letters, 43 selfloop transitions, 1 changer transitions 25/130 dead transitions. [2023-12-09 15:09:21,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 130 transitions, 419 flow [2023-12-09 15:09:21,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:09:21,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:09:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1141 transitions. [2023-12-09 15:09:21,229 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6234972677595628 [2023-12-09 15:09:21,229 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1141 transitions. [2023-12-09 15:09:21,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1141 transitions. [2023-12-09 15:09:21,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:21,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1141 transitions. [2023-12-09 15:09:21,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.06666666666666) internal successors, (1141), 15 states have internal predecessors, (1141), 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) [2023-12-09 15:09:21,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 122.0) internal successors, (1952), 16 states have internal predecessors, (1952), 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) [2023-12-09 15:09:21,245 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 122.0) internal successors, (1952), 16 states have internal predecessors, (1952), 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) [2023-12-09 15:09:21,248 INFO L308 CegarLoopForPetriNet]: 115 programPoint places, 14 predicate places. [2023-12-09 15:09:21,248 INFO L500 AbstractCegarLoop]: Abstraction has has 129 places, 130 transitions, 419 flow [2023-12-09 15:09:21,248 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.66666666666667) internal successors, (896), 12 states have internal predecessors, (896), 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) [2023-12-09 15:09:21,249 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:21,249 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:09:21,249 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:09:21,249 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:09:21,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:21,251 INFO L85 PathProgramCache]: Analyzing trace with hash 2141888686, now seen corresponding path program 2 times [2023-12-09 15:09:21,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:21,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648629279] [2023-12-09 15:09:21,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:21,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:09:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:09:23,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:09:23,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648629279] [2023-12-09 15:09:23,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648629279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:09:23,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:09:23,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-09 15:09:23,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965271922] [2023-12-09 15:09:23,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:09:23,316 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-09 15:09:23,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:09:23,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-09 15:09:23,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-09 15:09:23,318 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 122 [2023-12-09 15:09:23,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 130 transitions, 419 flow. Second operand has 12 states, 12 states have (on average 74.66666666666667) internal successors, (896), 12 states have internal predecessors, (896), 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) [2023-12-09 15:09:23,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:09:23,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 122 [2023-12-09 15:09:23,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:09:24,188 INFO L124 PetriNetUnfolderBase]: 2/141 cut-off events. [2023-12-09 15:09:24,188 INFO L125 PetriNetUnfolderBase]: For 51/53 co-relation queries the response was YES. [2023-12-09 15:09:24,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 141 events. 2/141 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 124 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 46. Up to 27 conditions per place. [2023-12-09 15:09:24,189 INFO L140 encePairwiseOnDemand]: 108/122 looper letters, 0 selfloop transitions, 0 changer transitions 128/128 dead transitions. [2023-12-09 15:09:24,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 128 transitions, 552 flow [2023-12-09 15:09:24,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:09:24,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:09:24,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1132 transitions. [2023-12-09 15:09:24,191 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6185792349726776 [2023-12-09 15:09:24,191 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1132 transitions. [2023-12-09 15:09:24,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1132 transitions. [2023-12-09 15:09:24,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:09:24,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1132 transitions. [2023-12-09 15:09:24,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.46666666666667) internal successors, (1132), 15 states have internal predecessors, (1132), 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) [2023-12-09 15:09:24,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 122.0) internal successors, (1952), 16 states have internal predecessors, (1952), 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) [2023-12-09 15:09:24,196 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 122.0) internal successors, (1952), 16 states have internal predecessors, (1952), 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) [2023-12-09 15:09:24,196 INFO L308 CegarLoopForPetriNet]: 115 programPoint places, 24 predicate places. [2023-12-09 15:09:24,196 INFO L500 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 552 flow [2023-12-09 15:09:24,197 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.66666666666667) internal successors, (896), 12 states have internal predecessors, (896), 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) [2023-12-09 15:09:24,203 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-collitem-symm.wvr.c_BEv2_AllErrorsAtOnce [2023-12-09 15:09:24,247 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:09:24,248 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:09:24,248 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:09:24,249 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:09:24,249 INFO L457 BasicCegarLoop]: Path program histogram: [2] [2023-12-09 15:09:24,251 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:09:24,251 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:09:24,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:09:24 BasicIcfg [2023-12-09 15:09:24,259 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:09:24,260 INFO L158 Benchmark]: Toolchain (without parser) took 8201.71ms. Allocated memory was 244.3MB in the beginning and 467.7MB in the end (delta: 223.3MB). Free memory was 205.0MB in the beginning and 138.9MB in the end (delta: 66.0MB). Peak memory consumption was 289.9MB. Max. memory is 8.0GB. [2023-12-09 15:09:24,261 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:09:24,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.12ms. Allocated memory is still 244.3MB. Free memory was 204.4MB in the beginning and 192.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:09:24,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.90ms. Allocated memory is still 244.3MB. Free memory was 192.9MB in the beginning and 190.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:09:24,263 INFO L158 Benchmark]: Boogie Preprocessor took 28.30ms. Allocated memory is still 244.3MB. Free memory was 190.3MB in the beginning and 188.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:09:24,263 INFO L158 Benchmark]: RCFGBuilder took 816.27ms. Allocated memory is still 244.3MB. Free memory was 188.2MB in the beginning and 202.7MB in the end (delta: -14.5MB). Peak memory consumption was 88.3MB. Max. memory is 8.0GB. [2023-12-09 15:09:24,265 INFO L158 Benchmark]: TraceAbstraction took 7134.63ms. Allocated memory was 244.3MB in the beginning and 467.7MB in the end (delta: 223.3MB). Free memory was 201.6MB in the beginning and 138.9MB in the end (delta: 62.7MB). Peak memory consumption was 285.5MB. Max. memory is 8.0GB. [2023-12-09 15:09:24,268 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 181.12ms. Allocated memory is still 244.3MB. Free memory was 204.4MB in the beginning and 192.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.90ms. Allocated memory is still 244.3MB. Free memory was 192.9MB in the beginning and 190.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.30ms. Allocated memory is still 244.3MB. Free memory was 190.3MB in the beginning and 188.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 816.27ms. Allocated memory is still 244.3MB. Free memory was 188.2MB in the beginning and 202.7MB in the end (delta: -14.5MB). Peak memory consumption was 88.3MB. Max. memory is 8.0GB. * TraceAbstraction took 7134.63ms. Allocated memory was 244.3MB in the beginning and 467.7MB in the end (delta: 223.3MB). Free memory was 201.6MB in the beginning and 138.9MB in the end (delta: 62.7MB). Peak memory consumption was 285.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: 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 with 1 thread instances CFG has 5 procedures, 132 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 327 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 255 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 336 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 72 mSDtfsCounter, 336 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=552occurred in iteration=2, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 2538 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! [2023-12-09 15:09:24,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...